Merge branch 'octeontx2-ptp-updates'

Rakesh Babu Saladi says:

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RVU AF and NETDEV drivers' PTP updates.

Patch 1: Add suppot such that RVU drivers support new timestamp format.
Patch 2: This patch adds workaround for PTP errata.

Changes made from  v1 to v2
1. CC'd Richard Cochran to review PTP related patches.
2. Removed a patch from the old patch series. Will submit the removed patch
separately.
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Signed-off-by: David S. Miller <davem@davemloft.net>