qdpc-host: fixes for Optimus Prime.

- Do not call qdpc_tune_pcie_mps(), which sets the PCIe MPS (Maximum
  Payload Size). The kernel already decided on the correct MPS during

- Do not call qdpc_set_dma_mask(), which sets the address limitation for
  DMA allocations. Quantenna document "PCIe Module Porting Guide" says
  that this call can be safely removed.

Change-Id: I783612b379e336859870d2f6243463649c393e5d
1 file changed