thermal: rcar_gen3_thermal: Add r8a774a1 support

Add r8a774a1 specific compatible string.
Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Reviewed-by: Biju Das <biju.das@bp.renesas.com>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>

drivers/thermal/rcar_gen3_thermal.c

@@ -327,6 +327,7 @@ static void rcar_gen3_thermal_init(struct rcar_gen3_thermal_tsc *tsc)
 }
 
 static const struct of_device_id rcar_gen3_thermal_dt_ids[] = {
+	{ .compatible = "renesas,r8a774a1-thermal", },
 	{ .compatible = "renesas,r8a7795-thermal", },
 	{ .compatible = "renesas,r8a7796-thermal", },
 	{ .compatible = "renesas,r8a77965-thermal", },