Just mark camera as unsupported if CFA size isn't 2x2.
Just mark camera as unsupported if CFA size isn't 2x2.

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