FWBase: Notification Drawer Shortcuts & WiFi/Carrier Labels management [3/5]

This commit clean and arrange the
PhoneStatusBar/PhoneStatusBarView javas to allow the use of Slim's
Notifications Drawer Shortcuts & Wifi/Carrier labels management.

Change-Id: Id84fa65d4ecf67f7ad0288e7c2160a8f5ead5448
Signed-off-by: Stefano Mura [STELIX] <ssspinni@gmail.com>