BUG-2259: mark AbstractBindingAware* as deprecated

These classes encapsulate OSGi-activated clients, which are deprecated
in favor of using config subsystem activation.

Change-Id: I9632c6608be67e5763117a9bbb6e9c2519eb27b0
Signed-off-by: Robert Varga <rovarga@cisco.com>
Merge "BUG-2259: mark AbstractBindingAware* as deprecated"