[media] si2168: relax demod lock checks a little

bit3 was not cleared always leaving driver reporting demod is not
fully locked. Do not check bit0 as it seems to be always 0.

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

drivers/media/dvb-frontends/si2168.c

···
 	 * [b4] statistics ready? Set in a few secs after lock is gained.
 	 */
 
-	switch ((cmd.args[2] >> 0) & 0x0f) {
-	case 0x0a:
+	switch ((cmd.args[2] >> 1) & 0x03) {
+	case 0x01:
 		*status = FE_HAS_SIGNAL | FE_HAS_CARRIER;
 		break;
-	case 0x0e:
-		*status = FE_HAS_SIGNAL | FE_HAS_CARRIER | FE_HAS_VITERBI;
-		break;
-	case 0x06:
+	case 0x03:
 		*status = FE_HAS_SIGNAL | FE_HAS_CARRIER | FE_HAS_VITERBI |
 				FE_HAS_SYNC | FE_HAS_LOCK;
 		break;