ARM: dts: iwg20m: Enable cmt0

This patch enables cmt0 support from within the iwg20m SoM dtsi.
Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Reviewed-by: Biju Das <biju.das@bp.renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

arch/arm/boot/dts/r8a7743-iwg20m.dtsi

@@ -34,6 +34,10 @@ reg_3p3v: 3p3v {
 	};
 };
 
+&cmt0 {
+	status = "okay";
+};
+
 &extal_clk {
 	clock-frequency = <20000000>;
 };