MPC8548: dts: Added PCIe DT node

MPC8548 integrated a PCIe controllers, which is compatible with
the PCI Express™ Base Specification, Revision 1.0a, and this
patch is to add DT node for the PCIe controller.

Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Prabhakar Kushwaha <prabhakar.kushwaha@nxp.com>
diff --git a/arch/powerpc/dts/mpc8548-post.dtsi b/arch/powerpc/dts/mpc8548-post.dtsi
index 5533a4b..2206f2d 100644
--- a/arch/powerpc/dts/mpc8548-post.dtsi
+++ b/arch/powerpc/dts/mpc8548-post.dtsi
@@ -25,3 +25,12 @@
 		last-interrupt-source = <255>;
 	};
 };
+
+&pcie {
+	compatible = "fsl,pcie-mpc8548", "fsl,pcie-fsl-qoriq";
+	law_trgt_if = <2>;
+	#address-cells = <3>;
+	#size-cells = <2>;
+	device_type = "pci";
+	bus-range = <0x0 0xff>;
+};