[fix] kodev: default NDKABI=14 if not set for NDK 15 standalone toolkit
[fix] kodev: default NDKABI=14 if not set for NDK 15 standalone toolkit
Frenzie/koreader,mwoz123/koreader,apletnev/koreader,houqp/koreader,pazos/koreader,koreader/koreader,NiLuJe/koreader,Hzj-jie/koreader,NiLuJe/koreader,poire-z/koreader,poire-z/koreader,Markismus/koreader,mihailim/koreader,koreader/koreader,lgeek/koreader,Frenzie/koreader