Proper API hierarchy between MODULE_LIBS and PRIV_APPS system APIs

Exempt-From-Owner-Approval: Cherry-picking from master

Test: build / treehugger
Bug: 146727827
Change-Id: Ie1ad6711c490c679ebcfacd97154380a8810ba1c
Merged-in: Ie1ad6711c490c679ebcfacd97154380a8810ba1c
1 file changed
tree: 7767830c7843d468197f32ef121acdf4d8797494
  1. java/