doc: replace @return by Return:

Sphinx expects Return: and not @return to indicate a return value.

find . -name '*.c' -exec \
sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \;

find . -name '*.h' -exec \
sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \;

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
diff --git a/lib/efi_loader/efi_acpi.c b/lib/efi_loader/efi_acpi.c
index a62c340..83f025e 100644
--- a/lib/efi_loader/efi_acpi.c
+++ b/lib/efi_loader/efi_acpi.c
@@ -15,7 +15,7 @@
 /*
  * Install the ACPI table as a configuration table.
  *
- * @return	status code
+ * Return:	status code
  */
 efi_status_t efi_acpi_register(void)
 {
diff --git a/lib/efi_loader/efi_device_path.c b/lib/efi_loader/efi_device_path.c
index 735ed0b..c61f485 100644
--- a/lib/efi_loader/efi_device_path.c
+++ b/lib/efi_loader/efi_device_path.c
@@ -51,7 +51,7 @@
  * Determine if an MMC device is an SD card.
  *
  * @desc	block device descriptor
- * @return	true if the device is an SD card
+ * Return:	true if the device is an SD card
  */
 static bool is_sd(struct blk_desc *desc)
 {
@@ -223,7 +223,7 @@
  * Determine the last device path node that is not the end node.
  *
  * @dp		device path
- * @return	last node before the end node if it exists
+ * Return:	last node before the end node if it exists
  *		otherwise NULL
  */
 const struct efi_device_path *efi_dp_last_node(const struct efi_device_path *dp)
@@ -572,7 +572,7 @@
  *
  * @buf		pointer to the end of the device path
  * @dev		device
- * @return	pointer to the end of the device path
+ * Return:	pointer to the end of the device path
  */
 __maybe_unused static void *dp_fill(void *buf, struct udevice *dev)
 {
diff --git a/lib/efi_loader/efi_device_path_to_text.c b/lib/efi_loader/efi_device_path_to_text.c
index 57fa9d9..d8a83c8 100644
--- a/lib/efi_loader/efi_device_path_to_text.c
+++ b/lib/efi_loader/efi_device_path_to_text.c
@@ -225,7 +225,7 @@
  *
  * @s		output buffer
  * @dp		device path node
- * @return	next unused buffer address
+ * Return:	next unused buffer address
  */
 static char *dp_media(char *s, struct efi_device_path *dp)
 {
@@ -310,7 +310,7 @@
  *
  * @buffer		output buffer
  * @dp			device path or node
- * @return		end of string
+ * Return:		end of string
  */
 static char *efi_convert_single_device_node_to_text(
 		char *buffer,
@@ -350,7 +350,7 @@
  * device_node		device node to be converted
  * display_only		true if the shorter text representation shall be used
  * allow_shortcuts	true if shortcut forms may be used
- * @return		text representation of the device path
+ * Return:		text representation of the device path
  *			NULL if out of memory of device_path is NULL
  */
 static uint16_t EFIAPI *efi_convert_device_node_to_text(
@@ -383,7 +383,7 @@
  * device_path		device path to be converted
  * display_only		true if the shorter text representation shall be used
  * allow_shortcuts	true if shortcut forms may be used
- * @return		text representation of the device path
+ * Return:		text representation of the device path
  *			NULL if out of memory of device_path is NULL
  */
 static uint16_t EFIAPI *efi_convert_device_path_to_text(
diff --git a/lib/efi_loader/efi_device_path_utilities.c b/lib/efi_loader/efi_device_path_utilities.c
index 9401532..a07d9ba 100644
--- a/lib/efi_loader/efi_device_path_utilities.c
+++ b/lib/efi_loader/efi_device_path_utilities.c
@@ -22,7 +22,7 @@
  * for details.
  *
  * @device_path		device path
- * @return		size in bytes
+ * Return:		size in bytes
  */
 static efi_uintn_t EFIAPI get_device_path_size(
 	const struct efi_device_path *device_path)
@@ -50,7 +50,7 @@
  * for details.
  *
  * @device_path		device path
- * @return		copy of the device path
+ * Return:		copy of the device path
  */
 static struct efi_device_path * EFIAPI duplicate_device_path(
 	const struct efi_device_path *device_path)
@@ -70,7 +70,7 @@
  *
  * @src1		1st device path
  * @src2		2nd device path
- * @return		concatenated device path
+ * Return:		concatenated device path
  */
 static struct efi_device_path * EFIAPI append_device_path(
 	const struct efi_device_path *src1,
@@ -91,7 +91,7 @@
  *
  * @device_path		device path
  * @device_node		device node
- * @return		concatenated device path
+ * Return:		concatenated device path
  */
 static struct efi_device_path * EFIAPI append_device_node(
 	const struct efi_device_path *device_path,
@@ -112,7 +112,7 @@
  *
  * @device_path			1st device path
  * @device_path_instance	2nd device path
- * @return			concatenated device path
+ * Return:			concatenated device path
  */
 static struct efi_device_path * EFIAPI append_device_path_instance(
 	const struct efi_device_path *device_path,
@@ -134,7 +134,7 @@
  *
  * @device_path_instance	next device path instance
  * @device_path_instance_size	size of the device path instance
- * @return			concatenated device path
+ * Return:			concatenated device path
  */
 static struct efi_device_path * EFIAPI get_next_device_path_instance(
 	struct efi_device_path **device_path_instance,
@@ -156,7 +156,7 @@
  *
  * @device_path		device path
  * @device_node		device node
- * @return		concatenated device path
+ * Return:		concatenated device path
  */
 static bool EFIAPI is_device_path_multi_instance(
 	const struct efi_device_path *device_path)
@@ -177,7 +177,7 @@
  * @node_type		node type
  * @node_sub_type	node sub type
  * @node_length		node length
- * @return		device path node
+ * Return:		device path node
  */
 static struct efi_device_path * EFIAPI create_device_node(
 	uint8_t node_type, uint8_t node_sub_type, uint16_t node_length)
diff --git a/lib/efi_loader/efi_memory.c b/lib/efi_loader/efi_memory.c
index 7f0b507..1c51a3f 100644
--- a/lib/efi_loader/efi_memory.c
+++ b/lib/efi_loader/efi_memory.c
@@ -452,7 +452,7 @@
  * @memory_type		usage type of the allocated memory
  * @pages		number of pages to be allocated
  * @memory		allocated memory
- * @return		status code
+ * Return:		status code
  */
 efi_status_t efi_allocate_pages(enum efi_allocate_type type,
 				enum efi_memory_type memory_type,
@@ -680,7 +680,7 @@
  * @map_key		key for the memory map
  * @descriptor_size	size of an individual memory descriptor
  * @descriptor_version	version number of the memory descriptor structure
- * @return		status code
+ * Return:		status code
  */
 efi_status_t efi_get_memory_map(efi_uintn_t *memory_map_size,
 				struct efi_mem_desc *memory_map,
diff --git a/lib/efi_loader/efi_smbios.c b/lib/efi_loader/efi_smbios.c
index fc0b233..306c0bc 100644
--- a/lib/efi_loader/efi_smbios.c
+++ b/lib/efi_loader/efi_smbios.c
@@ -16,7 +16,7 @@
 /*
  * Install the SMBIOS table as a configuration table.
  *
- * @return	status code
+ * Return:	status code
  */
 efi_status_t efi_smbios_register(void)
 {