AMDGPU: Fix redundant setting of m0 for atomic load/store
AMDGPU: Fix redundant setting of m0 for atomic load/store

Atomic load/store would have their setting of m0 handled twice, which
happened to be optimized out later.

git-svn-id: 0ff597fd157e6f4fc38580e8d64ab130330d2411@374801 91177308-0d34-0410-b5e6-96231b3b80d8

llvm-mirror/llvm,llvm-mirror/llvm,llvm-mirror/llvm,llvm-mirror/llvm,llvm-mirror/llvm,llvm-mirror/llvm,llvm-mirror/llvm,llvm-mirror/llvm,llvm-mirror/llvm