Merge branch 'net-add-iff_no_addrconf-to-prevent-ipv6-addrconf'

Xin Long says:

====================
net: add IFF_NO_ADDRCONF to prevent ipv6 addrconf

This patchset adds IFF_NO_ADDRCONF flag for dev->priv_flags
to prevent ipv6 addrconf, as Jiri Pirko's suggestion.

For Bonding it changes to use this flag instead of IFF_SLAVE
flag in Patch 1, and for Teaming and Net Failover it sets
this flag before calling dev_open() in Patch 2 and 3.
====================

Link: https://lore.kernel.org/r/cover.1670599241.git.lucien.xin@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>