V4L/DVB (7198): V4L, include ioctl.h in videodev headers

Fix compilation of user processes which includes videodev*.h but
not includes linux/ioctl.h:

v4l2ext_helper.c: In function 'process_ioctl':
v4l2ext_helper.c:183: warning: implicit declaration of function '_IOWR'
v4l2ext_helper.c:183: error: expected expression before 'struct'
v4l2ext_helper.c:183: error: case label does not reduce to an integer constant

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/include/linux/videodev2.h b/include/linux/videodev2.h
index 439474f24e34..17a80177a674 100644
--- a/include/linux/videodev2.h
+++ b/include/linux/videodev2.h
@@ -62,6 +62,7 @@
 #define __user
 #include <sys/time.h>
 #endif
+#include <linux/ioctl.h>
 #include <linux/types.h>
 
 /*