[mips] Fix emitAtomicCmpSwapPartword to handle 64 bit pointers correctly

Differential Revision: http://reviews.llvm.org/D18995


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@266204 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed