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/include/dm/pci.h b/include/dm/pci.h
index bddacbf..d35d24d 100644
--- a/include/dm/pci.h
+++ b/include/dm/pci.h
@@ -16,7 +16,7 @@
  * This returns an int to avoid a dependency on pci.h
  *
  * @dev:	PCI device
- * @return devfn in bits 15...8 if found (pci_dev_t format), or -ENODEV if not
+ * Return: devfn in bits 15...8 if found (pci_dev_t format), or -ENODEV if not
  *	found
  */
 int pci_get_devfn(struct udevice *dev);
@@ -33,7 +33,7 @@
  * @reg: reg value from dt-plat.c array (first member). This is not a
  *	pointer type, since the caller may use fdt32_t or fdt64_t depending on
  *	the address sizes.
- * @return device/function for that device (pci_dev_t format)
+ * Return: device/function for that device (pci_dev_t format)
  */
 static inline int pci_ofplat_get_devfn(u32 reg)
 {