ADB Over Network, integration of the adb-host mode (already present)

The feature can be used/tested without the Settings part :

  setprop service.adb.tcp.port 5555

Note: This ADB setting is not persistent (for security purpose) and
require init.rc implementation event like this : http://bit.ly/AdbTcpIP

Change-Id: Idc1bbbc0301e575870d10f47cb27dedcb4f16dba