Omnikey Cardman 4000: pull in ioctl.h in user header

This file uses the ioctl helpers (_IOR/_IOW/etc...), so include ioctl.h
for the definitions.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Cc: Harald Welte <laforge@gnumonks.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

include/uapi/linux/cm4000_cs.h

@@ -2,6 +2,7 @@
 #define _UAPI_CM4000_H_
 
 #include <linux/types.h>
+#include <linux/ioctl.h>
 
 #define	MAX_ATR			33