Update GSM0808_LCLS enums

Add values indicating that LCLS control/config/status value has not been
received yet.

Change-Id: I52dc6a52f5ee043ed2c1625ffecfd495e3c746b1
Related: OS#2487
diff --git a/include/osmocom/gsm/protocol/gsm_08_08.h b/include/osmocom/gsm/protocol/gsm_08_08.h
index 2317e78..cb9fe01 100644
--- a/include/osmocom/gsm/protocol/gsm_08_08.h
+++ b/include/osmocom/gsm/protocol/gsm_08_08.h
@@ -576,6 +576,7 @@
 	GSM0808_LCLS_CFG_BOTH_WAY_AND_SEND_DL_BLOCK_LOCAL_DL		= 0x03,
 	GSM0808_LCLS_CFG_BOTH_WAY_AND_BICAST_UL_SEND_DL			= 0x04,
 	GSM0808_LCLS_CFG_BOTH_WAY_AND_BICAST_UL_SEND_DL_BLOCK_LOCAL_DL	= 0x05,
+	GSM0808_LCLS_CFG_NA						= 0xFF
 };
 
 /* TS 48.008 3.2.2.117 */
@@ -585,6 +586,7 @@
 	GSM0808_LCLS_CSC_RELEASE_LCLS					= 0x02,
 	GSM0808_LCLS_CSC_BICAST_UL_AT_HANDOVER				= 0x03,
 	GSM0808_LCLS_CSC_BICAST_UL_AND_RECV_DL_AT_HANDOVER		= 0x04,
+	GSM0808_LCLS_CSC_NA						= 0xFF
 };
 
 /* TS 48.008 3.2.2.119 */
@@ -594,4 +596,5 @@
 	GSM0808_LCLS_STS_NO_LONGER_LS		= 0x02,
 	GSM0808_LCLS_STS_REQ_LCLS_NOT_SUPP	= 0x03,
 	GSM0808_LCLS_STS_LOCALLY_SWITCHED	= 0x04,
+	GSM0808_LCLS_STS_NA			= 0xFF
 };