Refactor SATD to inline most of the function. Replace full horizontal add with shuffle and regular packed add.
Refactor SATD to inline most of the function. Replace full horizontal add with shuffle and regular packed add.

ultravideo/kvazaar,ultravideo/kvazaar,lu-zero/kvazaar,lu-zero/kvazaar,ultravideo/kvazaar,ultravideo/kvazaar,lu-zero/kvazaar,lu-zero/kvazaar,ultravideo/kvazaar