x86/asm: Modernize sync_bitops.h

x86/asm: Modernize sync_bitops.h

Add missing instruction suffixes and use rmwcc.h just like was (more or less)
recently done for bitops.h as well, see:

  22636f8c9511: x86/asm: Add instruction suffixes to bitops
  288e4521f0f6: x86/asm: 'Simplify' GEN_*_RMWcc() macros

No change in functionality intended.

Signed-off-by: Jan Beulich <jbeulich@suse.com>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Juergen Gross <jgross@suse.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/5C9B93870200007800222289@prv1-mh.provo.novell.com
[ Cleaned up the changelog a bit. ]
Signed-off-by: Ingo Molnar <mingo@kernel.org>