DngOpcodes::PixelOpcode: properly sanitize rowPitch, colPitch
DngOpcodes::PixelOpcode: properly sanitize rowPitch, colPitch

LebedevRI/rawspeed,darktable-org/rawspeed,LebedevRI/rawspeed,darktable-org/rawspeed,LebedevRI/rawspeed,LebedevRI/rawspeed,LebedevRI/rawspeed,darktable-org/rawspeed,darktable-org/rawspeed,darktable-org/rawspeed