Wait to notify encryption complete when bonding

Some peripherals have issue where they cannot handle any operations when
bonding exchange is in progress. This CL waits to notify encryption
complete when bond is in process until notified by SMP that pairing is
complete.

Note: Currently this IOP is gated by name. In follow up CLs support will
be added to gate this by UUID and name.

Bug: 290392842
Test: m com.android.btservices
Manual; pair and connect LE device and ensure encryption complete events
happen in both scenarios.

Change-Id: I67810d5ef1d6b9c47a063973c370477988de5fdd