Fix of bugs #1773810, #1774626, gnome bug #466044: Olympus files have main IFD in MM order as well as makernote, but makernote endianness was guessed wrongly. Bug introduced when fixing bug #1525770.
Fix of bugs #1773810, #1774626, gnome bug #466044:
Olympus files have main IFD in MM order as well as makernote, but makernote endianness
was guessed wrongly. Bug introduced when fixing bug #1525770.

libexif/libexif,libexif/libexif,libexif/libexif