V4L/DVB (12502): gspca - sn9c20x: Fix gscpa sn9c20x build errors.

Reported-by: Toralf Forster <toralf.foerster@gmx.de>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/video/gspca/Kconfig

@@ -114,7 +114,7 @@ config USB_GSPCA_SN9C20X
 
 config USB_GSPCA_SN9C20X_EVDEV
        bool "Enable evdev support"
-       depends on USB_GSPCA_SN9C20X
+	depends on USB_GSPCA_SN9C20X && INPUT
        ---help---
 	 Say Y here in order to enable evdev support for sn9c20x webcam button.