x86: move bugs_64.c to cpu/bugs_64.c

It looks good to move bugs_64.c to cpu/bugs_64.c.
Signed-off-by: NHiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
Signed-off-by: NH. Peter Anvin <hpa@zytor.com>

arch/x86/kernel/Makefile

@@ -25,7 +25,6 @@ obj-$(CONFIG_X86_64)	+= syscall_64.o vsyscall_64.o setup64.o
 obj-y			+= bootflag.o e820_$(BITS).o
 obj-y			+= pci-dma.o quirks.o i8237.o topology.o kdebugfs.o
 obj-y			+= alternative.o i8253.o pci-nommu.o
-obj-$(CONFIG_X86_64)	+= bugs_64.o
 obj-y			+= tsc_$(BITS).o io_delay.o rtc.o
 
 obj-$(CONFIG_X86_TRAMPOLINE)	+= trampoline.o

arch/x86/kernel/cpu/Makefile

@@ -6,6 +6,7 @@ obj-y			:= intel_cacheinfo.o addon_cpuid_features.o
 obj-y			+= proc.o feature_names.o
 
 obj-$(CONFIG_X86_32)	+= common.o bugs.o
+obj-$(CONFIG_X86_64)	+= bugs_64.o
 obj-$(CONFIG_X86_32)	+= amd.o
 obj-$(CONFIG_X86_64)	+= amd_64.o
 obj-$(CONFIG_X86_32)	+= cyrix.o