x86: ivybridge: Add early init for PCH devices

Many PCH devices are hard-coded to a particular PCI address. Set these
up early in case they are needed.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/arch/x86/cpu/ivybridge/Makefile b/arch/x86/cpu/ivybridge/Makefile
index 74f01e8..e5c0751 100644
--- a/arch/x86/cpu/ivybridge/Makefile
+++ b/arch/x86/cpu/ivybridge/Makefile
@@ -6,6 +6,7 @@
 
 obj-y += car.o
 obj-y += cpu.o
+obj-y += early_init.o
 obj-y += lpc.o
 obj-y += microcode_intel.o
 obj-y += pci.o