[AMDGPU][MC][GFX9] Corrected encoding of ttmp registers, disabled tba/tma

See bugs 35494 and 35559:
https://bugs.llvm.org/show_bug.cgi?id=35494
https://bugs.llvm.org/show_bug.cgi?id=35559

Reviewers: vpykhtin, artem.tamazov, arsenm

Differential Revision: https://reviews.llvm.org/D41007

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@320375 91177308-0d34-0410-b5e6-96231b3b80d8
14 files changed