Log Message:
20170712:
x86: AVX-512 pixel_avg_weight_w8
x86: AVX-512 pixel_avg_weight_w16
x86: AVX-512 sub8x16_dct_dc
x86: AVX-512 sub8x8_dct_dc
x86: AVX-512 add8x8_idct
x86: AVX-512 sub16x16_dct
x86: AVX-512 sub8x8_dct
x86: AVX-512 sub4x4_dct
x86: AVX-512 mbtree_propagate_list
x86inc: Add aesni cpuflag define