implemented avx-512 vsqrt instructions

git-svn-id: svn://svn.code.sf.net/p/bochs/code/trunk@11974 6c8e4198-a580-4521-a02f-c9ae86df1db9
typo fix

git-svn-id: svn://svn.code.sf.net/p/bochs/code/trunk@11975 6c8e4198-a580-4521-a02f-c9ae86df1db9
typo fix 2

git-svn-id: svn://svn.code.sf.net/p/bochs/code/trunk@11976 6c8e4198-a580-4521-a02f-c9ae86df1db9