Merge branch 'net-dsa-lantiq-Add-bridge-offloading'

Hauke Mehrtens says:

====================
net: dsa: lantiq: Add bridge offloading

This adds bridge offloading for the Intel / Lantiq GSWIP 2.1 switch.

Changes since:
v2:
 - Added Fixes tag to patch 1
 - Fixed typo
 - added GSWIP_TABLE_MAC_BRIDGE_STATIC and made use of it
 - used GSWIP_TABLE_MAC_BRIDGE in more places

v1:
 - fix typo signle -> single
====================
Signed-off-by: NDavid S. Miller <davem@davemloft.net>