ARM64: print lsr instead of lsrv for variable shifts (etc)

The canonical syntax for shifts by a variable amount does not end with 'v', but
that syntax should be supported as an alias (presumably for legacy reasons).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207649 91177308-0d34-0410-b5e6-96231b3b80d8
4 files changed