Additional trigger on IO Capability Response

In some cases IO Capability Response indicates
a pairing session.

Bug: 162984360
Tag: #gd-refactor
Test: cert/run --host SecurityTest
Test: atest --host bluetooth_test_gd
Test: Manual testing with hybrid stack
Change-Id: Ib3a4bddafcb31f344fe4fbbb6441ce9c8e368344