V4L/DVB (6478): ir-functions use input functions, should depend on INPUT

Media ir-functions uses input_(*) functions so it should depend
on the INPUT config symbol.

drivers/built-in.o: In function `ir_input_key_event':
ir-functions.c:(.text+0x10849a): undefined reference to `input_event'
ir-functions.c:(.text+0x1084ac): undefined reference to `input_event'
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

drivers/media/Kconfig

@@ -151,6 +151,7 @@ config VIDEO_IR_I2C
 
 config VIDEO_IR
 	tristate
+	depends on INPUT
 	select VIDEO_IR_I2C if I2C
 
 config VIDEO_TVEEPROM