add parsing for ip.access vendor specific NM messages

diff --git a/include/openbsc/abis_nm.h b/include/openbsc/abis_nm.h
index 7369207..749f025 100644
--- a/include/openbsc/abis_nm.h
+++ b/include/openbsc/abis_nm.h
@@ -169,7 +169,9 @@
 	NM_MT_SET_ALARM_THRES,
 	NM_MT_SET_ALARM_THRES_ACK,
 	NM_MT_SET_ALARM_THRES_NACK,
-	
+};
+
+enum abis_nm_msgtype_bs11 {
 	NM_MT_BS11_RESET_RESOURCE	= 0x74,
 
 	NM_MT_BS11_BEGIN_DB_TX		= 0xa3,
@@ -203,6 +205,12 @@
 	NM_MT_BS11_RECONNECT_ACK,
 };
 
+enum abis_nm_msgtype_ipacc {
+	NM_MT_IPACC_RSL_CONNECT		= 0xe0,
+	NM_MT_IPACC_RSL_CONNECT_ACK,
+	NM_MT_IPACC_RSL_CONNECT_NACK,
+};
+
 /* Section 9.2: Object Class */
 enum abis_nm_obj_class {
 	NM_OC_SITE_MANAGER		= 0x00,
@@ -322,6 +330,9 @@
 	NM_ATT_BS11_ENA_RXQUAL_HO	= 0x6d,
 	NM_ATT_BS11_FACCH_QUAL		= 0x6e,
 
+	NM_ATT_IPACC_RSL_BSC_IP		= 0x80,
+	NM_ATT_IPACC_RSL_BSC_PORT	= 0x81,
+
 	NM_ATT_BS11_RF_RES_IND_PER	= 0x8f,
 	
 	NM_ATT_BS11_RX_LEV_MIN_CELL	= 0x90,