Port "Option to hide Adb notification icon (2/2)"

Change-Id: I63bfb7e4b4f0ac4d4d4c3da68ea767e8a37babdd
Framework: Forward port ADB over network (Part 2 of 2)

Includes:
- 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

  Author: Tanguy Pruvot
  Id: I5c61a53948349c785356cb5aae165110d75e3074

Change-Id: I101216c5b8ddff5040d9eeaf35afefc5cd98bbf3