Merge branch 'mlxsw-transceiver-trip-points'

Petr Machata says:

====================
mlxsw: Use static trip points for transceiver modules

Ido Schimmel writes:

See patch #1 for motivation and implementation details.

Patches #2-#3 are simple cleanups as a result of the changes in the
first patch.
====================

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