This commit changes the default HDD endianness to the correct one,
but stays compatible with the old endianness.
If an MBR with the wrong endianness is detected, it will
automatically enable word swapping and issue a warning splash.
To permanently fix this you'll need to upgrade emCORE to at least r836.
This will wipe all data! A post-r836 build of emCORE will be
officially released during the next couple of days.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@31455 a1c6a512-1295-4272-9138-f99709370657