Merge branch 'eth-fbnic-add-debugfs-for-mbx-and-tx-rx'

Mike Marciniszyn says:

====================
eth fbnic: Add debugfs for mbx and tx/rx

This patches adds debugfs read of the firmware mailbox tx/rx
and of the tx/rx rings for each napi vector.
====================

Link: https://patch.msgid.link/20260127200644.11640-1-mike.marciniszyn@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>