Merge branch 'net-hold-per-netns-rtnl-during-netdev-notifier-registration'

Kuniyuki Iwashima says:

====================
net: Hold per-netns RTNL during netdev notifier registration.

This series adds per-netns RTNL for registration of the global
and per-netns netdev notifiers.

v1: https://lore.kernel.org/netdev/20250104063735.36945-1-kuniyu@amazon.com/
====================

Link: https://patch.msgid.link/20250106070751.63146-1-kuniyu@amazon.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>