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/board/Marvell/octeontx/board-fdt.c b/board/Marvell/octeontx/board-fdt.c
index e989c37..6642b16 100644
--- a/board/Marvell/octeontx/board-fdt.c
+++ b/board/Marvell/octeontx/board-fdt.c
@@ -299,7 +299,7 @@
 /**
  * Return the FDT base address that was passed by ATF
  *
- * @return	FDT base address received from ATF in x1 register
+ * Return:	FDT base address received from ATF in x1 register
  */
 void *board_fdt_blob_setup(int *err)
 {
diff --git a/board/Marvell/octeontx2/board-fdt.c b/board/Marvell/octeontx2/board-fdt.c
index e2cfe01..04be9fb 100644
--- a/board/Marvell/octeontx2/board-fdt.c
+++ b/board/Marvell/octeontx2/board-fdt.c
@@ -213,7 +213,7 @@
 /**
  * Return the FDT base address that was passed by ATF
  *
- * @return	FDT base address received from ATF in x1 register
+ * Return:	FDT base address received from ATF in x1 register
  */
 void *board_fdt_blob_setup(int *err)
 {