framework: add blacklist disconnect cause

Constant to be used when marking a Call as blacklisted.

Change-Id: If8e0ba7a2fb9b3ebbcfde04df48cd0ab14bba864
Signed-off-by: Roman Birg <roman@cyngn.com>
Update color dependent items when reusing notifications.

The notification might have changed its color setting.

Change-Id: Icf494db47b30af5505107eec2f728fb8bcba421a