asus-laptop: update Kconfig for input layer

Update Kconfig, now asus-laptop use the input layer.

Signed-off-by: Corentin Chary <corentincj@iksaif.net>
Signed-off-by: Len Brown <len.brown@intel.com>
diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig
index 1a266d4..9436311 100644
--- a/drivers/platform/x86/Kconfig
+++ b/drivers/platform/x86/Kconfig
@@ -42,6 +42,7 @@
 	depends on LEDS_CLASS
 	depends on NEW_LEDS
 	depends on BACKLIGHT_CLASS_DEVICE
+	depends on INPUT
 	---help---
 	  This is the new Linux driver for Asus laptops. It may also support some
 	  MEDION, JVC or VICTOR laptops. It makes all the extra buttons generate