Alpine has changed location and package name of ttf-dejavu
fonts, adjust to new location.
Without this, fbkeyboard service crashes with error:
unable to load font file: No such file or directory
Default font path is hardcoded [1] to
"/usr/share/fonts/ttf-dejavu/DejaVuSans.ttf".
Luckily there is a CLI switch to change default, use it.
[1] https://github.com/bakonyiferenc/fbkeyboard/blob/master/fbkeyboard.c#L37
