bond_miimon_commit() is run while RTNL is held, not RCU.

WARNING: suspicious RCU usage
6.1.0-syzkaller-09671-g89529367 #0 Not tainted
-----------------------------
drivers/net/bonding/bond_main.c:2704 suspicious rcu_dereference_check() usage!

Fixes: e95cc447 ("bonding: do failover when high prio link up")
Signed-off-by: NEric Dumazet <edumazet@google.com>
Reported-by: Nsyzbot <syzkaller@googlegroups.com>
Cc: Hangbin Liu <liuhangbin@gmail.com>
Cc: Jay Vosburgh <j.vosburgh@gmail.com>
Cc: Veaceslav Falico <vfalico@gmail.com>
Cc: Andy Gospodarek <andy@greyhouse.net>
Link: https://lore.kernel.org/r/20221220130831.1480888-1-edumazet@google.comSigned-off-by: NPaolo Abeni <pabeni@redhat.com>