The Onda VX777 has only one button, add it to the keymap.
Also fix a typo that erroneously enabled button_hold in button-target.h

Flyspray: FS#10732
Author: Yann Muller

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@23383 a1c6a512-1295-4272-9138-f99709370657
3 files changed