gbproxy: Fix bvci check in gbprox_rx_ptp_from_*

The check for bvci in _rx_ptp_from_* was always false.

Change-Id: I16a0284ba3201c146c307db6997a416589d7e693
Related: OS#4472
diff --git a/src/gb_proxy.c b/src/gb_proxy.c
index 06023c4..ed4dbeb 100644
--- a/src/gb_proxy.c
+++ b/src/gb_proxy.c
@@ -250,7 +250,7 @@
 
 	LOGP(DGPRS, LOGL_DEBUG, "%s Rx %s\n", log_pfx, pdut_name);
 
-	if (ns_bvci == 0 && ns_bvci == 1) {
+	if (ns_bvci == 0 || ns_bvci == 1) {
 		LOGP(DGPRS, LOGL_NOTICE, "%s BVCI=%05u is not PTP\n", log_pfx, ns_bvci);
 		return bssgp_tx_status(BSSGP_CAUSE_PROTO_ERR_UNSPEC, NULL, msg);
 	}
@@ -360,7 +360,7 @@
 
 	LOGP(DGPRS, LOGL_DEBUG, "%s Rx %s\n", log_pfx, pdut_name);
 
-	if (ns_bvci == 0 && ns_bvci == 1) {
+	if (ns_bvci == 0 || ns_bvci == 1) {
 		LOGP(DGPRS, LOGL_NOTICE, "%s BVCI is not PTP\n", log_pfx);
 		return bssgp_tx_status(BSSGP_CAUSE_PROTO_ERR_UNSPEC, NULL, msg);
 	}