It's not the port advertised in the sink's wfd IE, it's the one our
source broadcasts in its wfd IE. In addition some dongles ignore the
broadcast port and have to be special cased.
Change-Id: Id5d279652e336391ba34dfc30bba700043d49b1d
The API is quite simple. There are a few extra functions
on DisplayManager to scan, connect and disconnect from
wifi displays and get status, and a single protected
broadcast sent when the status changes.
Change-Id: Ic91dbab5ee818e790b27fa32e1a1e93788793be0
