When firmware attempts roaming to an MLO AP, it tries to find
the complete ML info(all links info) either through ML probe
response or beacons from all the links. It forwards all link
beacons(or ML probe response) to host as part of roam sync
indication through roam sync frame event.
Add support to fetch both link beacons and add them to scan db.
If firmware sends ML probe response, generate link probe response
as well and add it to the scan db.
The link scan result can be used in link connect in case of
hybrid roaming like OWE, 1x,..
Change-Id: Ic8457a5630441d6fd3faeb4791c79422db787f94
CRs-Fixed: 3335225
7324535b01