LE Audio: don't use stored device type when choosing Bond transport

When choosing transport to use for bonding, we should rely just on the
most recent data. What we receive from storage might be outdated.

Test: Pair with dual mode device that's advertising over classic only, forget bond, try to pair again, ensure 2nd attempt is successful
Bug: 248340112
Change-Id: I7769296206d47db80cbcd962d7bf7a61e8ac60b2