VTS setSystemSelectionChannels maintain current state am: 479ec9e172

Original change: https://googleplex-android-review.googlesource.com/c/platform/hardware/interfaces/+/18474552

Change-Id: I1a95885cd1b3b64ea2a56216acfc4328ba53b20e
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>