For STA mode with STA CAC enable in auth/assoc state of assoc sm,
a northbound disconnect request would have to wait until CAC and
assoc is completed and connect request is removed from serialization
queue. During which OSIF timeout is seen as CAC can exceed the
serialization timeout of 60s.
Add change to handle EV_DOWN in disconnection progress state which
brings down the connection immediately on receiving a disconnect
request.
Change-Id: I301e49164c69df99e4617dd6fbc012e449963521
CRs-Fixed: 2882876
6f28758c51