* changed bmp.c so that it loads bitmap larger than LCD correctly.
* removed bmp entry form inbuilt_filetypes in filetypes.c so that bmp files will be opened with bmp viewer when selected in browser.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@24754 a1c6a512-1295-4272-9138-f99709370657
