MIUI Style carrier text in the statusbar [1/2]

Change-Id: Ib1d8d62b0e575277a779738b9820156e1a3fc999

Conflicts:
	core/java/android/provider/Settings.java
	packages/Keyguard/src/com/android/keyguard/CarrierText.java
	packages/SystemUI/res/values/custom_styles.xml
	packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java
	packages/SystemUI/src/com/android/systemui/statusbar/policy/NetworkController.java
	packages/SystemUI/src/com/android/systemui/statusbar/util/SpnOverride.java