Merge branch 'net-macb-clean-up-several-member-settings-of-macb_config-instances'

Kevin Hao says:

====================
net: macb: Clean up several member settings of macb_config instances

While debugging an issue in the macb driver, I noticed that many macb_config
instances have very similar member settings. This makes it difficult to
identify the actual differences between these instances. This patch series
aims to clean up some of these settings and clarify the specific configurations
of each macb_config instance. No functional changes are introduced.
====================

Link: https://patch.msgid.link/20260310-macb-cleanup-v1-0-928c1a91a7dc@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>