gprs_ns2: refactor: ensure all enums have GPRS_NS2_

All public enum should have the prefix GPRS_NS2_.

API change which must be synchronized with osmo-pcu,
osmo-gbproxy, osmo-sgsn.

Change-Id: I548ff12f7277cbb7e1a630a3dc02b738ce89be72
diff --git a/src/gb/gprs_ns2_fr.c b/src/gb/gprs_ns2_fr.c
index 8ad44ac..1c88db6 100644
--- a/src/gb/gprs_ns2_fr.c
+++ b/src/gb/gprs_ns2_fr.c
@@ -751,7 +751,7 @@
 
 	snprintf(idbuf, sizeof(idbuf), "%s-%s-DLCI%u-NSE%05u-NSVC%05u", gprs_ns2_lltype_str(nse->ll),
 		 bpriv->netif, dlci, nse->nsei, nsvci);
-	nsvc = ns2_vc_alloc(bind, nse, true, NS2_VC_MODE_BLOCKRESET, idbuf);
+	nsvc = ns2_vc_alloc(bind, nse, true, GPRS_NS2_VC_MODE_BLOCKRESET, idbuf);
 	if (!nsvc)
 		goto err;
 
@@ -789,7 +789,7 @@
 	OSMO_ASSERT(gprs_ns2_is_fr_bind(bind));
 	nse = gprs_ns2_nse_by_nsei(bind->nsi, nsei);
 	if (!nse) {
-		nse = gprs_ns2_create_nse(bind->nsi, nsei, GPRS_NS2_LL_FR, NS2_DIALECT_STATIC_RESETBLOCK);
+		nse = gprs_ns2_create_nse(bind->nsi, nsei, GPRS_NS2_LL_FR, GPRS_NS2_DIALECT_STATIC_RESETBLOCK);
 		if (!nse)
 			return NULL;
 		created_nse = true;