floss: Emit EIR uuids during device found

Floss depends on EIR uuids being emitted when the device is found and
not only when the pairing. This commit adds EIR uuids to the property
list immediately for Floss only.

Bug: 242772604
Tag: #floss
Test: Discover and inspect uuids on Pixel Buds without pairing
Change-Id: I9012c3bbbef864c0625c10fde02f685efc9b36e2