[AMDGPU][MC][DISASSEMBLER][GFX9] Corrected decoding of GLOBAL/SCRATCH opcodes

See bug 35433: https://bugs.llvm.org/show_bug.cgi?id=35433

Differential Revision: https://reviews.llvm.org/D40493

Reviewers: artem.tamazov, SamWot, arsenm

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@319050 91177308-0d34-0410-b5e6-96231b3b80d8
4 files changed