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/arch/x86/include/asm/lpc_common.h b/arch/x86/include/asm/lpc_common.h
index d462c2e..aa3ac62 100644
--- a/arch/x86/include/asm/lpc_common.h
+++ b/arch/x86/include/asm/lpc_common.h
@@ -49,7 +49,7 @@
  * also puts the RCB in the correct place so that RCB_REG() works.
  *
  * @dev:	LPC device (a child of the PCH)
- * @return 0 on success, -ve on error
+ * Return: 0 on success, -ve on error
  */
 int lpc_common_early_init(struct udevice *dev);