ARM: dts: add the PCI clock to the device tree

The PCIv3 driver needs to fetch this clock, so add it to the
device tree.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

arch/arm/boot/dts/integratorap.dts

@@ -160,6 +160,7 @@ pci: pciv3@62000000 {
 		reg = <0x62000000 0x10000>;
 		interrupt-parent = <&pic>;
 		interrupts = <17>; /* Bus error IRQ */
+		clocks = <&pciclk>;
 		ranges = <0x00000000 0 0x61000000 /* config space */
 			0x61000000 0 0x00100000 /* 16 MiB @ 61000000 */
 			0x01000000 0 0x0 /* I/O space */