arm64: dts: xilinx: fix PCI bus dtc warnings

dtc recently added PCI bus checks. Fix these warnings.

Signed-off-by: Rob Herring <robh@kernel.org>
Cc: Michal Simek <michal.simek@xilinx.com>
Cc: "Sören Brinkmann" <soren.brinkmann@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
diff --git a/arch/arm64/boot/dts/xilinx/zynqmp.dtsi b/arch/arm64/boot/dts/xilinx/zynqmp.dtsi
index 54dc283..1a3f5e9 100644
--- a/arch/arm64/boot/dts/xilinx/zynqmp.dtsi
+++ b/arch/arm64/boot/dts/xilinx/zynqmp.dtsi
@@ -221,6 +221,7 @@
 				  0x43000000 0x00000006 0x00000000 0x00000006
 				  0x00000000 0x00000002 0x00000000>;
 				  /* prefetchable memory */
+			bus-range = <0x00 0xff>;
 			interrupt-map-mask = <0x0 0x0 0x0 0x7>;
 			interrupt-map = <0x0 0x0 0x0 0x1 &pcie_intc 0x1>,
 					<0x0 0x0 0x0 0x2 &pcie_intc 0x2>,