V4L/DVB (6793): Convert saa7134-empress to video_ioctl2

saa7134 were converted to video_ioctl2, but saa7134_empress weren't. This broke
saa7134-empress, since it were dependent of saa7134_common_ioctl.

With the conversion, the module had a size decrease of 436 bytes on x86_64:

   text    data     bss     dec     hex filename
   5196    4912       4   10112    2780 old/saa7134-empress.ko
   4760    4912       4    9676    25cc new/saa7134-empress.ko

Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
diff --git a/drivers/media/video/saa7134/saa7134.h b/drivers/media/video/saa7134/saa7134.h
index 8fb9509..3e77aeb 100644
--- a/drivers/media/video/saa7134/saa7134.h
+++ b/drivers/media/video/saa7134/saa7134.h
@@ -566,6 +566,12 @@
 
 #define saa_wait(us) { udelay(us); }
 
+#define SAA7134_NORMS	(\
+		V4L2_STD_PAL    | V4L2_STD_PAL_N | \
+		V4L2_STD_PAL_Nc | V4L2_STD_SECAM | \
+		V4L2_STD_NTSC   | V4L2_STD_PAL_M | \
+		V4L2_STD_PAL_60)
+
 /* ----------------------------------------------------------- */
 /* saa7134-core.c                                              */
 
@@ -629,12 +635,13 @@
 extern struct video_device saa7134_video_template;
 extern struct video_device saa7134_radio_template;
 
+int saa7134_g_ctrl(struct file *file, void *priv, struct v4l2_control *c);
+int saa7134_s_ctrl(struct file *file, void *f, struct v4l2_control *c);
+int saa7134_queryctrl(struct file *file, void *priv, struct v4l2_queryctrl *c);
+
 int saa7134_videoport_init(struct saa7134_dev *dev);
 void saa7134_set_tvnorm_hw(struct saa7134_dev *dev);
 
-int saa7134_common_ioctl(struct saa7134_dev *dev,
-			 unsigned int cmd, void *arg);
-
 int saa7134_video_init1(struct saa7134_dev *dev);
 int saa7134_video_init2(struct saa7134_dev *dev);
 void saa7134_irq_video_signalchange(struct saa7134_dev *dev);