arm64: dts: hi3798cv200: correct PCIe 'bus-range' setting

The PCIe 'bus-range' setting is incorrect and causing the following
message during boot.

pci_bus 0000:01: busn_res: can not insert [bus 01-ff] under [bus 00-0f] (conflicts with (null) [bus 00-0f])

Correct it to get rid of the message.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Wei Xu <xuwei5@hisilicon.com>

arch/arm64/boot/dts/hisilicon/hi3798cv200.dtsi

@@ -564,7 +564,7 @@ pcie: pcie@9860000 {
 			#address-cells = <3>;
 			#size-cells = <2>;
 			device_type = "pci";
-			bus-range = <0 15>;
+			bus-range = <0x00 0xff>;
 			num-lanes = <1>;
 			ranges = <0x81000000 0x0 0x00000000 0x4f00000 0x0 0x100000
 				  0x82000000 0x0 0x3000000 0x3000000 0x0 0x01f00000>;