Remove the hardcoded special case for the H10 bootloader installation and uninstallation. Allow multiple bootloader filenames to be present and pick the existing one on (un)installation. This is also needed for easily adding support for the Samsung YH players (to make FS#10373 actually work).
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@22220 a1c6a512-1295-4272-9138-f99709370657