RW2Decoder: Use default aspect in checksupport to avoid error message.
RW2Decoder: Use default aspect in checksupport to avoid error message.

LebedevRI/rawspeed,mgehre/rawspeed,anarsoul/rawspeed,darktable-org/rawspeed,LebedevRI/rawspeed,LebedevRI/rawspeed,LebedevRI/rawspeed,mgehre/rawspeed,LebedevRI/rawspeed,klauspost/rawspeed,klauspost/rawspeed,darktable-org/rawspeed,darktable-org/rawspeed,darktable-org/rawspeed,darktable-org/rawspeed,anarsoul/rawspeed,anarsoul/rawspeed