PENTAX K-5: readjust/fix crop.
PENTAX K-5: readjust/fix crop.

See https://redmine.darktable.org/issues/12319

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