mgcp: Make the CI uint32_t all the way to avoid mismatch
diff --git a/openbsc/include/openbsc/mgcp_internal.h b/openbsc/include/openbsc/mgcp_internal.h
index 19e8e3f..d7be0a2 100644
--- a/openbsc/include/openbsc/mgcp_internal.h
+++ b/openbsc/include/openbsc/mgcp_internal.h
@@ -85,7 +85,7 @@
 };
 
 struct mgcp_endpoint {
-	int ci;
+	uint32_t ci;
 	char *callid;
 	char *local_options;
 	int conn_mode;