thermal: rcar_gen3_thermal: Add r8a774b1 support

Add r8a774b1 specific compatible string.
Signed-off-by: NBiju Das <biju.das@bp.renesas.com>
Reviewed-by: NGeert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: NDaniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/1569248746-56718-1-git-send-email-biju.das@bp.renesas.com

drivers/thermal/rcar_gen3_thermal.c

@@ -314,6 +314,10 @@ static const struct of_device_id rcar_gen3_thermal_dt_ids[] = {
 		.compatible = "renesas,r8a774a1-thermal",
 		.data = &rcar_gen3_ths_tj_1_m3_w,
 	},
+	{
+		.compatible = "renesas,r8a774b1-thermal",
+		.data = &rcar_gen3_ths_tj_1,
+	},
 	{
 		.compatible = "renesas,r8a7795-thermal",
 		.data = &rcar_gen3_ths_tj_1,