client/gatt: gatt_register_app: fix parsing of UUIDs

- argv[0] (shell command) must not be used as UUID argument
- fixed linked list iteration
diff --git a/client/gatt.c b/client/gatt.c
index 84b7f3f..3aaa7a9 100644
--- a/client/gatt.c
+++ b/client/gatt.c
@@ -1402,7 +1402,7 @@
 	dbus_message_iter_open_container(iter, DBUS_TYPE_ARRAY,
 				DBUS_TYPE_STRING_AS_STRING, &entry);
 
-	for (uuid = uuids; uuid; uuid = g_list_next(uuid->next))
+	for (uuid = uuids; uuid; uuid = g_list_next(uuid))
 		dbus_message_iter_append_basic(&entry, DBUS_TYPE_STRING,
 							&uuid->data);
 
@@ -1428,7 +1428,7 @@
 		return bt_shell_noninteractive_quit(EXIT_FAILURE);
 	}
 
-	for (i = 0; i < argc; i++)
+	for (i = 1; i < argc; i++)
 		uuids = g_list_append(uuids, g_strdup(argv[i]));
 
 	if (uuids) {