Apply the asm_volatile_goto() compiler quirk to the new rmwcc.h
file as well, introduced in:

   c2daa3be sched, x86: Provide a per-cpu preempt_count implementation
Reported-and-tested-by: NFengguang Wu <fengguang.wu@intel.com>
Reported-by: NOleg Nesterov <oleg@redhat.com>
Reported-by: NPeter Zijlstra <a.p.zijlstra@chello.nl>
Suggested-by: NJakub Jelinek <jakub@redhat.com>
Reviewed-by: NRichard Henderson <rth@twiddle.net>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: NIngo Molnar <mingo@kernel.org>