OC-2G: Always use positive TA information provided in PH-RA-IND

From-Commit: 960aa3d1b0b1
From-Remote: https://gitlab.com/nrw_noa/osmo-pcu
Change-Id: Ia526f712b95eb7bba99252f2a348d9fb5d2f3838
diff --git a/src/osmo-bts-oc2g/oc2g_l1_if.c b/src/osmo-bts-oc2g/oc2g_l1_if.c
index ccf7431..80b9dbc 100644
--- a/src/osmo-bts-oc2g/oc2g_l1_if.c
+++ b/src/osmo-bts-oc2g/oc2g_l1_if.c
@@ -248,9 +248,10 @@
 	if (ra_ind->measParam.fLinkQuality < MIN_QUAL_RACH)
 		return 0;
 
-	DEBUGP(DL1IF, "Rx PH-RA.ind");
+	LOGP(DL1IF, LOGL_DEBUG, "PH-RA-IND L1 qta=%d\n", ra_ind->measParam.i16BurstTiming);
+
 	bts_update_tbf_ta("PH-RA", ra_ind->u32Fn, fl1h->trx_no, ra_ind->u8Tn,
-			sign_qta2ta(ra_ind->measParam.i16BurstTiming), true);
+			qta2ta(ra_ind->measParam.i16BurstTiming), true);
 
 	return 0;
 }