Merge branch 'PTP-support-for-mv88e6165-family'

Andrew Lunn says:

====================
PTP support for mv88e6165 family

The mv88e6165 family of switches supports PTP. It is however not fully
compatible with the current PTP support in the mv88e6xxx driver. This
patchset adds a level of abstraction to the PTP code, and then adds
the code needed to support the mv88e6165 family.

v2: Correctly cluster local variables in mv88e6xxx_ptp_setup()
    Added Acked-by: Richard Cochran <richardcochran@gmail.com>
====================

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