fb: statusbar reflect am/pm based on the global user settings 12h/24h format (1/2)

Change-Id: I7d6eec4d62f0e1072f11e8e131608b78f17539d9

Conflicts:
	packages/SystemUI/src/com/android/systemui/statusbar/policy/Clock.java

 Changes to be committed:
	modified:   packages/SystemUI/src/com/android/systemui/statusbar/policy/Clock.java