WifiDisplay: Add an HDCP toggle

Some WFD dongles have frequent (or permanent) failures while
negotiating HDCP with the device, so add a toggle to allow
skipping HDCP entirely

Change-Id: Ia70122d63aa76bcb91428152f588c4d6dd2b610f

Conflicts:
	res/values/strings.xml
Add support for the new Remote Display APIs.

Remote display devices will now show up under wireless displays.

Change-Id: I1e73a208fe092a697c8294b743b0f1e2c0eabf42

Change-Id: I1e73a208fe092a697c8294b743b0f1e2c0eabf42