[media] adv7604: Add missing include to linux/types.h

The file is using u8 which is defined in linux/types.h.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

include/media/adv7604.h

@@ -21,6 +21,8 @@
 #ifndef _ADV7604_
 #define _ADV7604_
 
+#include <linux/types.h>
+
 /* Analog input muxing modes (AFE register 0x02, [2:0]) */
 enum adv7604_ain_sel {
 	ADV7604_AIN1_2_3_NC_SYNC_1_2 = 0,