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/arm/mach-exynos/include/mach/pinmux.h b/arch/arm/mach-exynos/include/mach/pinmux.h
index bd1ad5f..5ef04e7 100644
--- a/arch/arm/mach-exynos/include/mach/pinmux.h
+++ b/arch/arm/mach-exynos/include/mach/pinmux.h
@@ -37,7 +37,7 @@
  *
  * @param peripheral	peripheral to be configured
  * @param flags		configure flags
- * @return 0 if ok, -1 on error (e.g. unsupported peripheral)
+ * Return: 0 if ok, -1 on error (e.g. unsupported peripheral)
  */
 int exynos_pinmux_config(int peripheral, int flags);
 
@@ -46,7 +46,7 @@
  *
  * @param blob  Device tree blob
  * @param node  FDT I2C node to find
- * @return peripheral id if ok, PERIPH_ID_NONE on error
+ * Return: peripheral id if ok, PERIPH_ID_NONE on error
  */
 int pinmux_decode_periph_id(const void *blob, int node);
 #endif