headers_check fix: linux/video_encoder.h

fix the following 'make headers_check' warning:

  usr/include/linux/video_encoder.h:5: found __[us]{8,16,32,64} type without #include <linux/types.h>

Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
diff --git a/include/linux/video_encoder.h b/include/linux/video_encoder.h
index 4b0e690..b7b6423 100644
--- a/include/linux/video_encoder.h
+++ b/include/linux/video_encoder.h
@@ -1,6 +1,8 @@
 #ifndef _LINUX_VIDEO_ENCODER_H
 #define _LINUX_VIDEO_ENCODER_H
 
+#include <linux/types.h>
+
 struct video_encoder_capability { /* this name is too long */
 	__u32	flags;
 #define	VIDEO_ENCODER_PAL	1	/* can encode PAL signal */