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

Conflicts:
	core/java/android/provider/Settings.java

Change-Id: I02264d9cb9ab3e1e1db9e50030092699859c61d4
Fix MIUI-like carrier label appearing at random when applying theme

Change-Id: Ibe10b4586988183c149e9b8a1111714394bda34d
SystemUI: Reduced size of MIUI carrier text

It'll help make it look more uniform with everything else in the statusbar
in terms of size. It'll blend and not stick out.

Change-Id: Idc27a4cf8420c8864b7f5438e5d03be4e15ccd1b