Merge branch 'net-dsa-learning-fixes-for-b53-bcm_sf2'

Florian Fainelli says:

====================
net: dsa: Learning fixes for b53/bcm_sf2

This patch series contains a couple of fixes for the b53/bcm_sf2 drivers
with respect to configuring learning.

The first patch is wiring-up the necessary dsa_switch_ops operations in
order to support the offloading of bridge flags.

The second patch corrects the switch driver's default learning behavior
which was unfortunately wrong from day one.

This is submitted against "net" because this is technically a bug fix
since ports should not have had learning enabled by default but given
this is dependent upon Vladimir's recent br_flags series, there is no
Fixes tag provided.

I will be providing targeted stable backports that look a bit
different.

Changes in v2:

- added first patch
- updated second patch to include BR_LEARNING check in br_flags_pre as
  a support bridge flag to offload
====================

Link: https://lore.kernel.org/r/20210222223010.2907234-1-f.fainelli@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>