[OML] Allow each BTS model to specify the OML callback
This allows us to add BTS models that do not use the standard TS 12.21 OML
diff --git a/openbsc/src/bts_ipaccess_nanobts.c b/openbsc/src/bts_ipaccess_nanobts.c
index 6c7b2bd..25dc0c8 100644
--- a/openbsc/src/bts_ipaccess_nanobts.c
+++ b/openbsc/src/bts_ipaccess_nanobts.c
@@ -30,6 +30,8 @@
static struct gsm_bts_model model_nanobts = {
.type = GSM_BTS_TYPE_NANOBTS,
+ .name = "nanobts",
+ .oml_rcvmsg = &abis_nm_rcvmsg,
.nm_att_tlvdef = {
.def = {
/* ip.access specifics */