message: Fix selection of MSAA pipeline variant on D3D12
diff: @@ -729,7 +729,8 @@ ResourceId D3D12Replay::RenderOverlay(ResourceId texid, CompType typeCast, Float
  list->IASetPrimitiveTopology(D3D_PRIMITIVE_TOPOLOGY_TRIANGLELIST);
  - list->SetPipelineState(m_General.CheckerboardF16Pipe[overlayTexDesc.SampleDesc.Count - 1]);
  + list->SetPipelineState(
  + m_General.CheckerboardF16Pipe[Log2Floor(overlayTexDesc.SampleDesc.Count)]);
  list->SetGraphicsRootSignature(m_General.CheckerboardRootSig);
  