Add load support for Canon G12.
Add load support for Canon G12.

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