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Description of problem:

Kernel now exposes the permanent MAC address via rtnetlink. Use and prefer it over ethtool ioctl:

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f74877a5457d34d604dba6dbbb13c4c05bac8b93

Currently in `nmp_utils_ethtool_get_permanent_address()`, NM does a ethtool call to find the interface permanent mac address, instead of doing the additional ethtool call, we could change `_new_from_nl_link()` to parse/read the IFLA_PERM_ADDRESS attribute from netlink.

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory (NetworkManager bug fix and enhancement update), and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHEA-2022:1985