[SRU][N:linux-bluefield][PATCH v1 0/4] net/mlx5e: Use custom tunnel header for vxlan gbp

[Stav Aviram]

BugLink: https://bugs.launchpad.net/bugs/2126876

SRU Justification:

[IMPACT]
Introduce an upstream patch series that was previously integrated into linux-bluefield-5.15 (Ubuntu 22.04 Jammy) into linux-bluefield-6.8 (Ubuntu 24.04 Noble), in order to minimize the divergence between the two kernel versions.
These patches fix VXLAN GBP tunnel header handling, MAC address initialization for default FDB, lock ordering in PTP reporter, and error handling for E-Switch vport enabling.

[FIX]
Cherry-pick the following patches:
https://patch.msgid.link/20250423083611.324567-2-mbloch@nvidia.com
https://patch.msgid.link/20250423083611.324567-3-mbloch@nvidia.com
https://patch.msgid.link/20250423083611.324567-5-mbloch@nvidia.com
https://patch.msgid.link/20250423083611.324567-6-mbloch@nvidia.com

[TEST CASE]
Successfully compiled on linux-bluefield-6.8, master-next branch.

[Regression Potential]
Very low, as the series originates from upstream and has already been integrated into Jammy without reported issues.