ARM: shmobile: koelsch: Enable PCIe Controller & PCIe bus clock

Signed-off-by: Phil Edworthy <phil.edworthy@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

arch/arm/boot/dts/r8a7791-koelsch.dts

@@ -426,6 +426,14 @@
 	};
 };
 
+&pcie_bus_clk {
+	status = "okay";
+};
+
+&pciec {
+	status = "okay";
+};
+
 &cpu0 {
 	cpu0-supply = <&vdd_dvfs>;
 };