[AMDGPU] Refactor VOP1 and VOP2 instruction TD definitions

Differential revision: https://reviews.llvm.org/D24738

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@282234 91177308-0d34-0410-b5e6-96231b3b80d8
11 files changed