[x86] Implement sse4.2 crc32 functions
[x86] Implement sse4.2 crc32 functions

 - Implement
   - _mm_crc32_u8
   - _mm_crc32_u16
   - _mm_crc32_u32
   - _mm_crc32_u64
   - _mm_cmpgt_epi64

rust-lang/stdarch,rust-lang/stdarch,rust-lang/stdarch,rust-lang/stdarch,rust-lang/stdarch