[X86] Use SSE_INTMUL_ITINS_P for the AVX-512 MUL instructions to match their SSE/AVX counterparts.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321451 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed