Take module APIs out of the module_current stubs

This allows modules components to depend on internals of other
module components, by specifying the non-stub version of that
library.

Bug: 151092414
Test: m
Change-Id: Ia39b2686de7619ccb1ec154588c11a8b1b322647
Merged-In: Ia39b2686de7619ccb1ec154588c11a8b1b322647