Fix Settings crash when trying to show work policy info

This fixes an exception in startActivity() call:

"android.util.AndroidRuntimeException: Calling startActivity() from outside of
an Activity  context requires the FLAG_ACTIVITY_NEW_TASK flag. Is this really
what you want?"

Bug: 132904820
Test: manual
Change-Id: I0c687ea76068778554b072b6cc8274352de6fa28