staging: dgnc: Include version.h header in dgnc_kcompat.h

version.h header inclusion is necessary as detected by
versioncheck.
Signed-off-by: NSachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/dgnc/dgnc_kcompat.h

@@ -28,6 +28,8 @@
 #ifndef __DGNC_KCOMPAT_H
 #define __DGNC_KCOMPAT_H
 
+#include <linux/version.h>
+
 # ifndef KERNEL_VERSION
 #  define KERNEL_VERSION(a,b,c)  (((a) << 16) + ((b) << 8) + (c))
 # endif