Merge "Using flexible WEBRTC signaling server port in acloud reconnect." am: 134adceccb am: 614987fec1 am: a90e03fd33

Original change: https://android-review.googlesource.com/c/platform/tools/acloud/+/1683770

Change-Id: Ic20045a9f641910bf6869f616b3602c5aae3ad79