message: fix the return value of PciHandle::write32 for winring0 driver backend
diff: @@ -128,8 +128,9 @@ int32 PciHandle::write32(uint64 offset, uint32 value)
  if (!status)
  {
  //std::cerr << "Error writing PCI Config space at bus "<<bus<<" dev "<< device<<" function "<< function <<" offset "<< offset << " size "<< req.bytes << ". Windows error: "<<GetLastError()<<std::endl;
  + return 0;
  }
  - return (int32)reslength;
  + return (int32)sizeof(uint32);
  }
  return (WritePciConfigDwordEx(pciAddress, (DWORD)offset, value)) ? sizeof(uint32) : 0;
  