Merge "Replace usages of @hide telephony APIs with system/public ones."

packages/SystemUI/Android.bp

...temUI/src/com/android/keyguard/KeyguardUpdateMonitor.java

...oid/systemui/statusbar/policy/MobileSignalController.java

...roid/systemui/statusbar/policy/NetworkControllerImpl.java

...s/src/com/android/keyguard/CarrierTextControllerTest.java

...s/src/com/android/keyguard/KeyguardUpdateMonitorTest.java

.../systemui/statusbar/policy/NetworkControllerBaseTest.java

...ystemui/statusbar/policy/NetworkControllerSignalTest.java