Merge branch 'mlxsw-Bump-firmware-version-to-XX-2007-1168'

Ido Schimmel says:

====================
mlxsw: Bump firmware version to XX.2007.1168

Petr says:

In patch #1, bump the firmware version required by the driver to
XX.2007.1168. This version fixes several issues observed in the
offloaded datapath.

In patch #2, add support for requiring FW version on Spectrum-3 (so far
only Spectrum-1 and Spectrum-2 have had this requirement). Demand the
same version as mentioned above.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>