Merge branch 'macb-ptp-minor-updates'

Harini Katakam says:

====================
Macb PTP minor updates

- Enable PTP unicast
- Optimize HW timestamp reading
====================

Link: https://lore.kernel.org/r/20230411123712.11459-1-harini.katakam@amd.com


Signed-off-by: Jakub Kicinski <kuba@kernel.org>