Cleanup some plurals in Settings

Change <one> to <1> in string res file, and update related java files.
Test: Update, existing test still pass.
bug: 199230342

Change-Id: Idd0ba3c6adc060da21574d98f8ed765fae00cef8

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

@@ -47,6 +47,7 @@ import com.android.settingslib.core.lifecycle.LifecycleObserver;
 import com.android.settingslib.core.lifecycle.events.OnStart;
 import com.android.settingslib.development.DevelopmentSettingsEnabler;
 
+import com.android.settingslib.utils.StringUtil;
 import com.google.android.setupcompat.util.WizardManagerHelper;
 
 public class BuildNumberPreferenceController extends BasePreferenceController implements
@@ -181,9 +182,8 @@ public class BuildNumberPreferenceController extends BasePreferenceController im
                     mDevHitToast.cancel();
                 }
                 mDevHitToast = Toast.makeText(mContext,
-                        mContext.getResources().getQuantityString(
-                                R.plurals.show_dev_countdown, mDevHitCountdown,
-                                mDevHitCountdown),
+                        StringUtil.getIcuPluralsString(mContext, mDevHitCountdown,
+                                R.string.show_dev_countdown),
                         Toast.LENGTH_SHORT);
                 mDevHitToast.show();
             }