[media] media: dvb_core: replace a magic number by a macro

It's better to use TS_SC instead of magic number 0xC0.

[m.chehab@samsung.com: patch rebased and message rewritten, as this
 patch conflicted with an already applied patch]

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

Ported from upstream: 373145282ea61c2a01980914ee5bbff7cf62afd6

Change-Id: Ib6a1b9edcdceed988fa68d229bcabdf6812f82aa
diff --git a/drivers/media/dvb/dvb-core/dvb_net.c b/drivers/media/dvb/dvb-core/dvb_net.c
index 1c3f9a3..c6fc1d9 100644
--- a/drivers/media/dvb/dvb-core/dvb_net.c
+++ b/drivers/media/dvb/dvb-core/dvb_net.c
@@ -382,7 +382,7 @@
 				printk_ratelimited(KERN_WARNING "%lu: Invalid TS cell: SYNC %#x, TEI %u, SC %#x.\n",
 						priv->ts_count, ts[0],
 						(ts[1] & TS_TEI) >> 7,
-						(ts[3] & 0xC0) >> 6);
+						(ts[3] & TS_SC) >> 6);
 
 				/* Drop partly decoded SNDU, reset state, resync on PUSI. */
 				if (priv->ule_skb) {