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/drivers/block/blk-uclass.c b/drivers/block/blk-uclass.c
index a055387..bee1cd6 100644
--- a/drivers/block/blk-uclass.c
+++ b/drivers/block/blk-uclass.c
@@ -172,7 +172,7 @@
  * @if_type:	Interface type
  * @devnum:	Device number (0 = first)
  * @descp:	Returns block device descriptor on success
- * @return 0 on success, -ENODEV if there is no such device and no device
+ * Return: 0 on success, -ENODEV if there is no such device and no device
  * with a higher device number, -ENOENT if there is no such device but there
  * is one with a higher number, or other -ve on other error.
  */