[X86] Put the locked mi8 instrutions above the locked mi/mi32 so they will be prefered.

We want 64mi8 to be prefered over 64mi32. The order for 16mi/32mi doesn't
really matter.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@358361 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed