The "Stop TDLS" button won't show up on smaller screens such as N4/N5. Fixed
by changing the layout.
Change-Id: I708376468eea5b053a7ed15ec5cebb18393ba235
First test toggles wifi on/off forever (must have wifi associated to start,
or at least a remembered network in range)
Second test toggles the screen on off so you can test wifi cycle from that point.
Lastly adds some network-feature tests using mms or hipri net features.
bug: 2170806