pcu_sock: Send non-NULL hLayer1 to PCU

The BSC-located PCU case looks to the PCU like a BTS-located PCU with
"direct PHY" access, i.e. the data related primitives are communicated
from the PCU directly towards the TRAU Frames or whatever transport
method is used between CCU and PCU.

In order to make the PCU believe that, we need to pass in a 'layer 1
handle'.  As we don't use it, we can just pass any non-zero value and be
happy.

Change-Id: I8170bd4134904702b6b272e496100361ba473cbc
diff --git a/openbsc/src/libbsc/pcu_sock.c b/openbsc/src/libbsc/pcu_sock.c
index 4555b31..2186409 100644
--- a/openbsc/src/libbsc/pcu_sock.c
+++ b/openbsc/src/libbsc/pcu_sock.c
@@ -223,6 +223,7 @@
 		trx = gsm_bts_trx_num(bts, i);
 		if (!trx)
 			break;
+		info_ind->trx[i].hlayer1 = 0x2342;
 		info_ind->trx[i].pdch_mask = 0;
 		info_ind->trx[i].arfcn = trx->arfcn;
 		for (j = 0; j < ARRAY_SIZE(trx->ts); j++) {