Revert "Remove the OEM hook implementation and usage"

This reverts commit 2635a89c8cb536d487c5a77ea205f787c19dc92e.

Bug: 34344851
Test: Treehugger
Change-Id: I96697165fd75054de42f007c16ca294ed6725708
Merged-In: I96697165fd75054de42f007c16ca294ed6725708
(cherry picked from commit 00b89515a54b7f8d635408994c6384fb80fe2127)
6 files changed