enable CMOV_IS_FAST as its faster or equal speed on every cpu (duron, athlon, PM, P3) from which ive seen benchmarks, it might be slower on P4 but noone has posted benchmarks ...


git-svn-id: file:///var/local/repositories/ffmpeg/trunk@6652 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b