[POWERPC] Update PCI nodes in the 83xx/85xx boards device tree

Updated the 83xx & 85xx device tree PCI related compartible property.

Used the following compatible properties:
	PCI     "fsl,mpc8349-pci"
	PCI     "fsl,mpc8540-pci"
	PCI-X:  "fsl,mpc8540-pcix"
	PCIe:   "fsl,mpc8548-pcie"

Signed-off-by: Roy Zang <tie-fei.zang@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
diff --git a/arch/powerpc/boot/dts/mpc8540ads.dts b/arch/powerpc/boot/dts/mpc8540ads.dts
index 364a969..fc8dff9 100644
--- a/arch/powerpc/boot/dts/mpc8540ads.dts
+++ b/arch/powerpc/boot/dts/mpc8540ads.dts
@@ -258,7 +258,7 @@
 			#size-cells = <2>;
 			#address-cells = <3>;
 			reg = <8000 1000>;
-			compatible = "85xx";
+			compatible = "fsl,mpc8540-pcix", "fsl,mpc8540-pci";
 			device_type = "pci";
 		};