Merge branch 'net-add-export_ipv6_mod'

Eric Dumazet says:

====================
net: add EXPORT_IPV6_MOD()

In this series I am adding EXPORT_IPV6_MOD and EXPORT_IPV6_MOD_GPL()
so that we can replace some EXPORT_SYMBOL() when IPV6 is
not modular.

This is making all the selected symbols internal to core
linux networking.

v1: https://lore.kernel.org/20250210082805.465241-2-edumazet@google.com
====================

Link: https://patch.msgid.link/20250212132418.1524422-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>