gsm_08_58: Add vendor-specific Message Type for ETWS Primary Warning

Change-Id: I36fc2ffc22728887d1cb8768c7fcd9739a8ec0fc
Related: OS#4046, OS#4047

include/osmocom/gsm/protocol/gsm_08_58.h

@@ -236,6 +236,8 @@ enum abis_rsl_msgtype {
 	RSL_MT_IPAC_DLCX		= 0x77,
 	RSL_MT_IPAC_DLCX_ACK,
 	RSL_MT_IPAC_DLCX_NACK,
+
+	RSL_MT_OSMO_ETWS_CMD		= 0x7f,
 };
 
 /*! Siemens vendor-specific RSL message types */

src/gsm/rsl.c

@@ -389,6 +389,7 @@ static const struct value_string rsl_msgt_names[] = {
 	{ RSL_MT_TFO_REP,		"TFO_REP" },
 	{ RSL_MT_TFO_MOD_REQ,		"TFO_MOD_REQ" },
 	{ RSL_MT_LOCATION_INFO,		"LOCATION_INFO" },
+	{ RSL_MT_OSMO_ETWS_CMD,		"OSMO_ETWS_CMD" },
 	{ 0,				NULL }
 };