libbsc/pcu_sock.c: pcu_tx_info_ind allow to use TRX not starting from 0

It would prevent using only e.g. TRX 1 when TRX 0 is disabled.

Change-Id: I68dc5e837bd2a3602f7875063c85da4082196274
diff --git a/openbsc/src/libbsc/pcu_sock.c b/openbsc/src/libbsc/pcu_sock.c
index 6e72f00..18d82a9 100644
--- a/openbsc/src/libbsc/pcu_sock.c
+++ b/openbsc/src/libbsc/pcu_sock.c
@@ -220,7 +220,7 @@
 	for (i = 0; i < ARRAY_SIZE(info_ind->trx); i++) {
 		trx = gsm_bts_trx_num(bts, i);
 		if (!trx)
-			break;
+			continue;
 		info_ind->trx[i].hlayer1 = 0x2342;
 		info_ind->trx[i].pdch_mask = 0;
 		info_ind->trx[i].arfcn = trx->arfcn;