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/include/asm/arch-tegra124/display.h b/arch/arm/include/asm/arch-tegra124/display.h
index 47e0056..ca3d575 100644
--- a/arch/arm/include/asm/arch-tegra124/display.h
+++ b/arch/arm/include/asm/arch-tegra124/display.h
@@ -16,14 +16,14 @@
  *
  * @param blob			Device tree blob
  * @param default_lcd_base	Default address of LCD frame buffer
- * @return 0 if ok, -1 on error (unsupported bits per pixel)
+ * Return: 0 if ok, -1 on error (unsupported bits per pixel)
  */
 int tegra_display_probe(const void *blob, void *default_lcd_base);
 
 /**
  * Return the current display configuration
  *
- * @return pointer to display configuration, or NULL if there is no valid
+ * Return: pointer to display configuration, or NULL if there is no valid
  * config
  */
 struct fdt_disp_config *tegra_display_get_config(void);