Add new datagrm controller API for CTS

Bug: 339040483
Test: atest SatelliteManagerTestOnMockService, atest DemoSimulatorTest
Change-Id: Ifbc578a006e4102bae99440e9395d70f26886a08
Merged-In: Ifbc578a006e4102bae99440e9395d70f26886a08
2 files changed