Merge branch 'ipv6-sr-fix-errors-during-unregister'

Hangbin Liu says:

====================
ipv6: sr: fix errors during unregister

Fix some errors in seg6 unregister path, like missing unregister functions,
incorrect unregister order, etc.
====================

Link: https://lore.kernel.org/r/20240509131812.1662197-1-liuhangbin@gmail.com


Signed-off-by: Jakub Kicinski <kuba@kernel.org>