abuild: look for so dependencies in RPATH too
Some .so files have a rpath where to look for the needed .so. When tracing package dependencies we also have a look there. This should fix problem when the .so is not in standard location, /usr/lib or /lib. (for example freeradius plugins) While here we also reorganize things so we only call apk info --who-owns once for each package instead of once for each needed .so. This should speed up things when there are many needed .so files.
Showing with 47 additions and 10 deletions