x86: ivybridge: Drop the special PCI driver

There is nothing special about the ivybridge pci driver now, so just use
the generic one.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
diff --git a/arch/x86/dts/chromebook_link.dts b/arch/x86/dts/chromebook_link.dts
index 022b04c..18305a3 100644
--- a/arch/x86/dts/chromebook_link.dts
+++ b/arch/x86/dts/chromebook_link.dts
@@ -193,7 +193,7 @@
 	};
 
 	pci {
-		compatible = "intel,pci-ivybridge", "pci-x86";
+		compatible = "pci-x86";
 		#address-cells = <3>;
 		#size-cells = <2>;
 		u-boot,dm-pre-reloc;