Add support for Panasonic LX3 in 1:1 mode.
Add support for Panasonic LX3 in 1:1 mode.

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