[media] em28xx: Fix a few warnings due to HVR-930C addition

drivers/media/video/em28xx/em28xx-cards.c:339:30: warning: ‘hauppauge_930c_gpio’ defined but not used [-Wunused-variable]
drivers/media/video/em28xx/em28xx-dvb.c: In function ‘em28xx_dvb_init’:
drivers/media/video/em28xx/em28xx-dvb.c:886:3: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/video/em28xx/em28xx-dvb.c b/drivers/media/video/em28xx/em28xx-dvb.c
index 55a9008..ea2208e 100644
--- a/drivers/media/video/em28xx/em28xx-dvb.c
+++ b/drivers/media/video/em28xx/em28xx-dvb.c
@@ -864,6 +864,8 @@
 		}
 		break;
 	case EM2884_BOARD_HAUPPAUGE_WINTV_HVR_930C:
+	{
+		struct xc5000_config cfg;
 		hauppauge_hvr930c_init(dev);
 
 		dvb->dont_attach_fe1 = 1;
@@ -883,7 +885,6 @@
 		dvb->fe[1]->id = 1;
 
 		/* Attach xc5000 */
-		struct xc5000_config cfg;
 		memset(&cfg, 0, sizeof(cfg));
 		cfg.i2c_address  = 0x61;
 		cfg.if_khz = 4000;
@@ -906,6 +907,7 @@
 		       sizeof(dvb->fe[0]->ops.tuner_ops));
 
 		break;
+	}
 	case EM2884_BOARD_TERRATEC_H5:
 		terratec_h5_init(dev);