Cr2Decoder::decodeNewFormat(): store subsampling in RawImage's subsampling field
Cr2Decoder::decodeNewFormat(): store subsampling in RawImage's subsampling field

So that the LJPEG decoder could cross-check with it

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