gnss: ubx: add u-blox,neo-6m compatible

Add compatible for u-blox NEO-6M GPS module.
Signed-off-by: Ondrej Jirman <megous@megous.com>
Signed-off-by: Johan Hovold <johan@kernel.org>

drivers/gnss/ubx.c

@@ -130,6 +130,7 @@ static void ubx_remove(struct serdev_device *serdev)
 
 #ifdef CONFIG_OF
 static const struct of_device_id ubx_of_match[] = {
+	{ .compatible = "u-blox,neo-6m" },
 	{ .compatible = "u-blox,neo-8" },
 	{ .compatible = "u-blox,neo-m8" },
 	{},