ax203: Move handling of ISO image mem usage and memory end
ax203: Move handling of ISO image mem usage and memory end

Move the handling of ISO image mem usage and memory end to
ax203_build_used_mem_table(), this is another storageinfo preperation
patch.


git-svn-id: 40dd595c6684d839db675001a64203a1457e7319@12933 67ed7778-7388-44ab-90cf-0a291f65f57c

gphoto/libgphoto2.OLDMIGRATION,gphoto/libgphoto2.OLDMIGRATION,gphoto/libgphoto2.OLDMIGRATION,gphoto/libgphoto2.OLDMIGRATION