QtQa: Renaming Websockets CI project

WebSockets was moved from playground to qt and renamed to
QtWebSockets.

Change-Id: I676833bfe2487dadca98ced951aa9a4048e4475c
Reviewed-by: Tony Sarajärvi <tony.sarajarvi@digia.com>
Reviewed-by: Sergio Ahumada <sahumada@blackberry.com>