Upstream partner request to add BC methods to core platform API.

Bug: 129665886
Bug: 129440746
Test: m && flashall
Change-Id: Ia4b081f7f240ccc52177c1b7fea29cf48261da75
Merged-In: Ia4b081f7f240ccc52177c1b7fea29cf48261da75
(cherry picked from commit d1cc1bde893a4d7013a5f22daee5a00a19107d78)
12 files changed