ScanResult: Add radio chain information

On devices with multiple radio chains, each scan result could be
received using different combination of the available radio chains
(DBS, MCC). Add a new parameter in the scan result to convey this meta
information about the scan result.

Bug: 68335251
Test: Unit tests
Change-Id: I1fc97745b9e74b768b67b0c80e52ce4a13e69527
2 files changed