follow gprs_ns2 API enum changes

All gprs_ns2 enums have now GPRS_NS2 as prefix.

Depends-on: I548ff12f7277cbb7e1a630a3dc02b738ce89be72 (libosmocore)
Change-Id: Ifdc7956318c07d680feab33c22bc2c6f20927bf9
diff --git a/src/pcu_vty.c b/src/pcu_vty.c
index 288f241..4b502c9 100644
--- a/src/pcu_vty.c
+++ b/src/pcu_vty.c
@@ -244,7 +244,7 @@
 		}
 	}
 
-	if (the_pcu->vty.ns_dialect == NS2_DIALECT_SNS)
+	if (the_pcu->vty.ns_dialect == GPRS_NS2_DIALECT_SNS)
 		vty_out(vty, " gb-dialect ip-sns%s", VTY_NEWLINE);
 	else
 		vty_out(vty, " gb-dialect classic%s", VTY_NEWLINE);
@@ -1010,9 +1010,9 @@
 	      "Modern Gb interface with IP-SNS (Sub Network Service) and dynamic configuration\n")
 {
 	if (!strcmp(argv[0], "ip-sns")) {
-		the_pcu->vty.ns_dialect = NS2_DIALECT_SNS;
+		the_pcu->vty.ns_dialect = GPRS_NS2_DIALECT_SNS;
 	} else {
-		the_pcu->vty.ns_dialect = NS2_DIALECT_IPACCESS;
+		the_pcu->vty.ns_dialect = GPRS_NS2_DIALECT_IPACCESS;
 	}
 
 	return CMD_SUCCESS;