Revert commit 599b4c6e

	Author: Mans Rullgard <mans@mansr.com>
	Date:   Sun Dec 11 21:41:59 2011 +0000

    	x86: cabac: replace explicit memory references with "m" operands

    	This replaces the explicit offset(reg) memory references with
    	"m" operands for the same locations.  As a result, one fewer
    	register operand is needed for these inline asm statements.

This change appears to have broken compilation on darwin, and subsequent
fixes by martin (which did not fix compilation) removed the register
advantage, thus this change seems not a good idea to keep.
See: http://fate.ffmpeg.org/log.cgi?time=20120103122446&log=compile&slot=i386-darwin-llvm-gcc-4.2.1



Signed-off-by: Michael Niedermayer <michaelni@gmx.at>