Merge branch 'ipv6-convert-rtm_-new-del-addr-and-more-to-per-netns-rtnl'

Kuniyuki Iwashima says:

====================
ipv6: Convert RTM_{NEW,DEL}ADDR and more to per-netns RTNL.

This series converts RTM_NEWADDR/RTM_DELADDR and some more
RTNL users in addrconf.c to per-netns RTNL.

v1: https://lore.kernel.org/20250114080516.46155-1-kuniyu@amazon.com
====================

Link: https://patch.msgid.link/20250115080608.28127-1-kuniyu@amazon.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>