net/bonding: fix when NTT flag updated
net/bonding: fix when NTT flag updated

According to the standard, state machine of LACP should transmit lacpdu
when partner's state changes from slow to fast, rather than from fast
to slow.

Fixes: 46fb43683679 ("bond: add mode 4")
Cc: stable@dpdk.org

Signed-off-by: Sha Zhang <94b6adc39f9ed0abba49bce47689d9cef25b16ed@huawei.com>
Acked-by: Declan Doherty <b4388acd850cd8caad5000a112795063f04807ac@intel.com>

john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk