Hide signal strength when told by carrier

Bug: 69730732
Test: Add different values for two carriers in vendor.xml
and see them change when swapping sim card
Depends-On: I155c8f619a451edab85cf6422cef73e8e1686629
Change-Id: I241ddb3c20002db781308d94c6c165b8d13b2474

src/com/android/settings/deviceinfo/SimStatus.java

@@ -406,6 +406,12 @@ public class SimStatus extends SettingsPreferenceFragment {
         if (!mShowLatestAreaInfo) {
             removePreferenceFromScreen(KEY_LATEST_AREA_INFO);
         }
+
+        boolean hideSignalStrength = carrierConfig.getBoolean(
+                CarrierConfigManager.KEY_HIDE_SIGNAL_STRENGTH_IN_SIM_STATUS_BOOL);
+        if (hideSignalStrength) {
+            removePreferenceFromScreen(KEY_SIGNAL_STRENGTH);
+        }
     }
 
     private void updatePhoneInfos() {