SystemUI: fix long pressing notifications

Stops the intent from firing off when long pressing
for the menu.

Signed-off-by: Roman Birg <romanbirg@gmail.com>
Add turn off action to WiFi Tether notification

Change-Id: I320405ed7e90e4c06ecdb127cd4c1cad6bedbcdd
Signed-off-by: Gergely Szell (sethyx) <szell@hu.ibm.com>

Conflicts:
	core/res/res/values/strings.xml
	core/res/res/values/symbols.xml
	services/java/com/android/server/connectivity/Tethering.java