[Feature sync] Fix issue where multiple SRV records with same host are not fully resolved

For Matter, a device may have a single host with multiple A/AAAA
records, but multiple PTR/SRV pairs that represent different
operational identities for the same device.

Currently, MdnsResponseDecoder looks for only a single matching
MdnsResponse by hostname when looping through the A/AAAA records
(which will leave the second response incomplete). Updated with a
flag that will allow returning all MdnsResponses which match the
given hostname and update the Inet records for all responses.

Bug: 254155029
Test: atest FrameworksNetTests
      Verified with a Matter device with two identities that the
      second response is incomplete without this change.
      Additionally, added unit tests to verify the before and
      after behavior with a real packet capture from the device.
Change-Id: Ic4a101b305c039f6cd7fd557246a2bfdaf0c781a