update shared libraries for system apps

After removing updates for a system package, we weren't updating its
shared libraries when we should have. Make it so.

NOTE: This didn't affect device boot because we update all of the
shared libraries for all system applications after scanning packages.

Bug: 30266503
Change-Id: I8edf4344228fb3e793e7648ea70a041cb5db6af6
(cherry picked from commit 6058df65)