Add extra WebRTC UDP ports 15553-15556.

This is a workaround in case the webrtc AVD connect to the port above 15552.
If the solution cl/427155224 is feasible, to remove the ssh forwarding port command.

Bug: 209502647
Bug: 220651795
Test: acloud create
Change-Id: Ia0c68b7b2296cf44fdb07aad6686f31a875d424f
2 files changed