[X86] Add tied source operand to AVX5124FMAPS and AVX5124VNNIW instructions.

This doesn't affect the assembly or disassembly, but is more accurate.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@333822 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed