BSC_Tests: also match band indicator in SI6 Rest Octets

Due to a bug in the current osmo-bsc master, osmo-bsc inverts
the band indicator bit in SI6 Rest Octets.  This change extends
testing coverage to demonstrate the problem (see TC_si_default).

Change-Id: I93e1fcfaea973ec2461e30f656d5f5f0d829909b
Related: osmo-bsc.git Iaa8377919a144e7f3799b76249f579c8f3874145
diff --git a/bsc/BSC_Tests.ttcn b/bsc/BSC_Tests.ttcn
index 0da2916..8f70452 100644
--- a/bsc/BSC_Tests.ttcn
+++ b/bsc/BSC_Tests.ttcn
@@ -455,7 +455,14 @@
 		radio_link_timeout := '0111'B
 	    },
 	    ncc_permitted := '11111111'B,
-	    rest_octets := ?
+	    rest_octets := {
+		pch_nch_info := ?,
+		vbs_vgcs_options := ?,
+		dtm_support := '0'B,
+		rac := omit,
+		max_lapdm := omit,
+		band_ind := '0'B /* C0 ARFCN indicates 1800 band */
+	    }
 	}
     };