Implemented AVX-512 VPMOV* down-conversion stores

git-svn-id: svn://svn.code.sf.net/p/bochs/code/trunk@12105 6c8e4198-a580-4521-a02f-c9ae86df1db9
fixed operands for new instructions

git-svn-id: svn://svn.code.sf.net/p/bochs/code/trunk@12106 6c8e4198-a580-4521-a02f-c9ae86df1db9
fixed decoding bug in avx-512 instruction tables

git-svn-id: svn://svn.code.sf.net/p/bochs/code/trunk@12107 6c8e4198-a580-4521-a02f-c9ae86df1db9