Support LOCAL_ENFORCE_USES_LIBRARIES in androidmk

1. add LOCAL_ENFORCE_USES_LIBRARIES support in the androidmk tool;
2. add one test case.

Bug: 187838385
Test: run 'm androidmk'
Test: TreeHugger
Change-Id: Ibdde2a5a58ef45655a3083b592fa21f7fe63d032