Merge branch 'ncsi-phy-link-up'

Ivan Mikhaylov says:

====================
net/ncsi: Add NCSI Intel OEM command to keep PHY link up

Add NCSI Intel OEM command to keep PHY link up and prevents any channel
resets during the host load on i210. Also includes dummy response handler for
Intel manufacturer id.

Changes from v1:
 1. sparse fixes about casts
 2. put it after ncsi_dev_state_probe_cis instead of
    ncsi_dev_state_probe_channel because sometimes channel is not ready
    after it
 3. inl -> intel
====================

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