Merge "Disable context sync telecom code by default" into udc-dev am: e5257275 am: eeee7dfc

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23061738



Change-Id: I641dbe9d59dd423377432e60e753268a44a5198a
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>