ARM: dts: versatile: fix PCI bus dtc warnings

dtc recently added PCI bus checks. Fix these warnings.
Signed-off-by: Rob Herring <robh@kernel.org>
Cc: Russell King <linux@armlinux.org.uk>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

arch/arm/boot/dts/versatile-pb.dts

@@ -39,7 +39,7 @@ gpio3: gpio@101e7000 {
 			clock-names = "apb_pclk";
 		};
 
-		pci-controller@10001000 {
+		pci@10001000 {
 			compatible = "arm,versatile-pci";
 			device_type = "pci";
 			reg = <0x10001000 0x1000