ACPI / video: Fix typo in video_detect.c

Correct "**retyurn_value" to "**return_value".
Signed-off-by: NMasanari Iida <standby24x7@gmail.com>
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>

drivers/acpi/video_detect.c

@@ -50,7 +50,7 @@ static bool acpi_video_caps_checked;
 
 static acpi_status
 acpi_backlight_cap_match(acpi_handle handle, u32 level, void *context,
-			  void **retyurn_value)
+			  void **return_value)
 {
 	long *cap = context;