x86_64: prepare shared kernel/crash_dump.c

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

arch/x86_64/kernel/Makefile

@@ -24,7 +24,7 @@ obj-$(CONFIG_SMP)		+= smp_64.o smpboot_64.o trampoline_64.o tsc_sync.o
 obj-y				+= apic_64.o  nmi_64.o
 obj-y				+= io_apic_64.o mpparse_64.o genapic_64.o genapic_flat.o
 obj-$(CONFIG_KEXEC)		+= machine_kexec.o relocate_kernel_64.o crash_64.o
-obj-$(CONFIG_CRASH_DUMP)	+= crash_dump.o
+obj-$(CONFIG_CRASH_DUMP)	+= crash_dump_64.o
 obj-$(CONFIG_PM)		+= suspend_64.o
 obj-$(CONFIG_HIBERNATION)	+= suspend_asm_64.o
 obj-$(CONFIG_CPU_FREQ)		+= ../../i386/kernel/cpu/cpufreq/