Revert "Revert "MediaRouter: add routing controller in MRM""

This reverts commit 7d720f70be5f104b71afa68797a95224631fa9d0.

Reason for revert: Fixed the build issue

Test: atest mediaroutertest

Change-Id: I6cae922d701640a1f43965041c653bd7a61411cb
8 files changed