efi_loader: static functions in efi_runtime.c

Functions that are not used externally should be static.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
diff --git a/lib/efi_loader/efi_runtime.c b/lib/efi_loader/efi_runtime.c
index ad2ab82..cee96bf 100644
--- a/lib/efi_loader/efi_runtime.c
+++ b/lib/efi_loader/efi_runtime.c
@@ -462,7 +462,7 @@
  * @scatter_gather_list:	pointer to array of physical pointers
  * Returns:			status code
  */
-efi_status_t __efi_runtime EFIAPI efi_update_capsule_unsupported(
+static efi_status_t __efi_runtime EFIAPI efi_update_capsule_unsupported(
 			struct efi_capsule_header **capsule_header_array,
 			efi_uintn_t capsule_count,
 			u64 scatter_gather_list)
@@ -484,7 +484,7 @@
  * @reset_type:			type of reset needed for capsule update
  * Returns:			status code
  */
-efi_status_t __efi_runtime EFIAPI efi_query_capsule_caps_unsupported(
+static efi_status_t __efi_runtime EFIAPI efi_query_capsule_caps_unsupported(
 			struct efi_capsule_header **capsule_header_array,
 			efi_uintn_t capsule_count,
 			u64 *maximum_capsule_size,