i#1312 AVX-512 support: Fix missing W1 bits, AVX-512 instructions. (#3652)
i#1312 AVX-512 support: Fix missing W1 bits, AVX-512 instructions. (#3652)

Fixes several W1 bit bugs found by comparing api.ir verbose output to capstone,
gas/binutils and llvm-mc.

Issue: #1312
AmesianX/dynamorio,AmesianX/dynamorio,AmesianX/dynamorio,AmesianX/dynamorio,AmesianX/dynamorio