[CostModel][X86] getIntrinsicInstrCost - convert to CostKindTblEntry

Begin the refactoring to use CostKindTblEntry and return real latency/codesize/sizelatency costs instead of reusing the throughput numbers

This should allow us to merge getTypeBasedIntrinsicInstrCost into getIntrinsicInstrCost and remove all remaining references