update to comply with libosmocore namespace fixes

This updates the code and brings it in sync to
libosmocore git commit 892e621fec571c7cba3573caa0d328ed1b25d8ee
diff --git a/tests/ipa_proxy_test.c b/tests/ipa_proxy_test.c
index b57127a..6288a3a 100644
--- a/tests/ipa_proxy_test.c
+++ b/tests/ipa_proxy_test.c
@@ -17,7 +17,7 @@
 
 struct log_info_cat ipa_proxy_test_cat[] = {
 	[DIPA_PROXY_TEST] = {
-		.name = "DINP_IPA_PROXY_TEST",
+		.name = "DLINP_IPA_PROXY_TEST",
 		.description = "IPA proxy test",
 		.color = "\033[1;35m",
 		.enabled = 1, .loglevel = LOGL_NOTICE,
@@ -33,7 +33,7 @@
 static int bsc_vty_is_config_node(struct vty *vty, int node)
 {
 	switch(node) {
-	case IPA_NODE:
+	case L_IPA_NODE:
 		return 1;
 		break;
 	}
@@ -43,7 +43,7 @@
 static enum node_type bsc_vty_go_parent(struct vty *vty)
 {
 	switch (vty->node) {
-	case IPA_NODE:
+	case L_IPA_NODE:
 		vty->node = VIEW_NODE;
 		break;
 	}