V4L/DVB (10852): cx18: Include cx18-audio.h in cx18-audio.c to eliminate s-parse warning

Signed-off-by: Andy Walls <awalls@radix.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/video/cx18/cx18-audio.c

@@ -24,6 +24,7 @@
 #include "cx18-driver.h"
 #include "cx18-io.h"
 #include "cx18-cards.h"
+#include "cx18-audio.h"
 
 #define CX18_AUDIO_ENABLE 0xc72014