media: remove include stdarg.h from some drivers

It doesn't make any sense to have gcc's stdarg.h included
inside the Linux Kernel.

Get rid of those includes.

Signed-off-by: Mauro Carvalho Chehab <[e-mail]>

drivers/media/pci/cx18/cx18-mailbox.c

···
  *  Copyright (C) 2008  Andy Walls <[e-mail]>
  */
 
-#include <stdarg.h>
+#include <linux/bitops.h>
 
 #include "cx18-driver.h"
 #include "cx18-io.h"

drivers/media/pci/ivtv/ivtv-mailbox.c

···
 #include "ivtv-driver.h"
 #include "ivtv-mailbox.h"
 
-#include <stdarg.h>
-
 /* Firmware mailbox flags*/
 #define IVTV_MBOX_FIRMWARE_DONE 0x00000004
 #define IVTV_MBOX_DRIVER_DONE   0x00000002

drivers/media/pci/ttpci/av7110_hw.c

···
 /* for debugging ARM communication: */
 //#define COM_DEBUG
 
-#include <stdarg.h>
 #include <linux/types.h>
 #include <linux/kernel.h>
 #include <linux/string.h>

drivers/media/radio/radio-trust.c

···
  * Converted to V4L2 API by Mauro Carvalho Chehab <[e-mail]>
  */
 
-#include <stdarg.h>
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/ioport.h>