Staging: sb105x: mark it BROKEN

It isn't using the port logic, and breaks the build at the moment, so
mark it BROKEN.

Cc: Jiri Slaby <jslaby@suse.cz>
Cc: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>