Merge branch 'liquidio-VF-driver-will-notify-NIC-firmware-of-MTU-change'

Veerasenareddy Burru says:

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liquidio: VF driver will notify NIC firmware of MTU change

Make VF driver notify NIC firmware of MTU change.  Firmware needs this
information for MTU propagation and enforcement.

The first patch in this series moves a macro definition to a proper place
to prevent a build error in the second patch which has the code that sends
the notification.

Change Log:
  V1 -> V2
    * Add "From:" line to patch #1 and #2 to give credit to the author.
    * In patch #2, order local variable declarations from longest to
      shortest line.
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Signed-off-by: David S. Miller <davem@davemloft.net>