Set the textDirection of the mac address view to "locale" instead of
the inherited default of "firstStrong", so that the address itself is
always aligned with the label.
Bug: 21396886
Change-Id: I143ec069bde56d34484e8839c60386de268bb930
Show the MAC address in footer so that advanced users can configure
their router whitelist etc.
Bug: 6939795
Change-Id: I858d21fb68f67f74e5b7e3a1960ea4d7966acb29