Notify all running users for global settings change

Test: pass: atest android.provider.cts.SettingsTest
      pass: atest android.provider.cts.Settings_SystemTest
      pass: atest android.provider.cts.Settings_SecureTest
      pass: adb shell am instrument -w com.android.providers.setting.test
                /android.support.test.runner.AndroidJUnitRunner

Bug: 74547258

Change-Id: Ic8c76467248d5bea64eeb8c7321f552664b6a2a6