CEC: Defer CEC actions until logical address is available

If logical address of device is not set, CEC actions will not work
correctly because outgoing CEC message's source address will be
wrong. In this case, CEC actions should be deferred until address
allocation finishes.

Bug: 28709242
Change-Id: I09e199c6144a5b341e3a6113022d0243fcfc3cf5