initrd: fix setting VLan ID in reader_parse_vlan()

g_ascii_strtoull() returns a guint64, which is very wrong to directly pass
to the variadic argument list of g_object_set(). We expect a guint there
and need to cast.

While at it, use _nm_utils_ascii_str_to_int64() to parse and validate the input.

src/initrd/nmi-cmdline-reader.c

@@ -719,7 +719,7 @@ reader_parse_vlan (Reader *reader, char *argument)
 	s_vlan = nm_connection_get_setting_vlan (connection);
 	g_object_set (s_vlan,
 	              NM_SETTING_VLAN_PARENT, phy,
-	              NM_SETTING_VLAN_ID, g_ascii_strtoull (vlanid, NULL, 10),
+	              NM_SETTING_VLAN_ID, (guint) _nm_utils_ascii_str_to_int64 (vlanid, 10, 0, G_MAXUINT, G_MAXUINT),
 	              NULL);
 
 	if (argument && *argument)