Merge "Update InfoMediaManager.devices when a session is released" into udc-dev am: e8bca0fd

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/22931118



Change-Id: If1dcc7a7e255a0ede141637f3399805c39cddfb2
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>