bt: Fix displaying late bond device name

In a case when we are pairing set members the action
SET_MEMBER_AVAILABLE may come before advertising information was able
to arrive to Java layer and thus the information like device name was
not cached and is not available for the new set member device. In this
case we want to use the first set member device's name to have some name
displayed to the user instead of an address.

Bug: 282193044
Test: manual
Tag: #feature

Change-Id: I25eb50702f8c41cd5917cf9ea29eb0c3c17d2bd5