Don't exit KUAL on the Voyage (#6233)
Don't exit KUAL on the Voyage (#6233)

This should allow WhisperTouch support to stay enabled, allowing
consistent button behavior.

c.f., https://github.com/koreader/koreader/issues/6038#issuecomment-612564693

Fix #6038

(Requires today's KUAL build, Booklet only).
mwoz123/koreader,koreader/koreader,NiLuJe/koreader,Markismus/koreader,Hzj-jie/koreader,pazos/koreader,poire-z/koreader,poire-z/koreader,NiLuJe/koreader,Frenzie/koreader,Frenzie/koreader,koreader/koreader