arm64: dts: renesas: cat875: Enable PCIe support

This patch enables PCIEC0 PCI express controller on the sub board.
Signed-off-by: Biju Das <biju.das@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

arch/arm64/boot/dts/renesas/cat875.dtsi

@@ -30,6 +30,10 @@ phy0: ethernet-phy@0 {
 	};
 };
 
+&pciec0 {
+	status = "okay";
+};
+
 &pfc {
 	avb_pins: avb {
 		mux {