This removes the tuner-specific region structs and makes each driver use the common one (which is now extended with a deemphasis field) git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27579 a1c6a512-1295-4272-9138-f99709370657
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@21703 a1c6a512-1295-4272-9138-f99709370657