x86, crash: Unify ifdef

Merge two back-to-back CONFIG_X86_32 ifdefs into one.
Signed-off-by: NBorislav Petkov <bp@suse.de>
Link: http://lkml.kernel.org/r/1394633584-5509-3-git-send-email-bp@alien8.deSigned-off-by: NH. Peter Anvin <hpa@linux.intel.com>

arch/x86/kernel/crash.c

@@ -57,9 +57,7 @@ static void kdump_nmi_callback(int cpu, struct pt_regs *regs)
 {
 #ifdef CONFIG_X86_32
 	struct pt_regs fixed_regs;
-#endif
 
-#ifdef CONFIG_X86_32
 	if (!user_mode_vm(regs)) {
 		crash_fixup_ss_esp(&fixed_regs, regs);
 		regs = &fixed_regs;