Simplify the *-lib-* functions

Simplify the java-lib-* type functions, three layers of abstraction
is a bit much for a single line function, and isn't reducing enough
duplication to be worth the complexity.

Add app-lib-* functions and use them.

Test: m -j checkbuild
Change-Id: Ia47ebc95e4af2073396233416f14fdee7d856844