x86_64: prepare shared pci/mmconfig.c

Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
Signed-off-by: NIngo Molnar <mingo@elte.hu>

arch/x86_64/pci/Makefile

@@ -11,7 +11,7 @@ obj-y		+= fixup.o init.o
 obj-$(CONFIG_ACPI)	+= acpi.o
 obj-y			+= legacy.o irq.o common.o early.o
 # mmconfig has a 64bit special
-obj-$(CONFIG_PCI_MMCONFIG) += mmconfig.o direct.o mmconfig-shared.o
+obj-$(CONFIG_PCI_MMCONFIG) += mmconfig_64.o direct.o mmconfig-shared.o
 
 obj-$(CONFIG_NUMA)	+= k8-bus_64.o