net: socket: Add support for filling receive pktinfo data

If user has set either IP_PKTINFO (for IPv4) or
IPV6_RECVPKTINFO (for IPv6) socket options, then the system
will return relevant information in recvmsg() ancillary data.

Fixes #36415

Signed-off-by: Jukka Rissanen <jukka.rissanen@nordicsemi.no>