Merge branch 'convert-mlx5e-and-ipoib-to-ndo_hwtstamp_get-set'

Tariq Toukan says:

====================
Convert mlx5e and IPoIB to ndo_hwtstamp_get/set

This series by Carolina migrates mlx5e and IPoIB to the
ndo_hwtstamp_get/set interface and removes legacy hardware timestamp
ioctl handling.  While doing so, it also cleans up naming and removes
redundant code.

No functional change in timestamp behavior.

Cleanup patches:
- net/mlx5e: Remove redundant tstamp pointer from channel structures
- net/mlx5e: Remove unnecessary tstamp local variable in mlx5i_complete_rx_cqe
- net/mlx5e: Rename hwstamp functions to hwtstamp
- net/mlx5e: Rename timestamp fields to hwtstamp_config

Add suppport in ipoib:
- IB/IPoIB: Add support for hwtstamp get/set ndos

Convert mlx5:
- net/mlx5e: Convert to new hwtstamp_get/set interface
====================

Link: https://patch.msgid.link/1761819910-1011051-1-git-send-email-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>