Quicksettings: Sleep tile.

* Click goes to sleep.
* Long click opens display settings.

Signed-off-by: Carlo Savignano <stevewatersy@gmail.com>

Conflicts:
	packages/SystemUI/res/values/pa_strings.xml

Change-Id: I564f596a2e70984de5e0cb3acecb25ce7a5a3846

Conflicts:
	packages/SystemUI/res/values/pa_strings.xml