Merge branch 'bnxt_en-DCBX-fixes'

Michael Chan says:

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bnxt_en: DCBX fixes.

2 bug fixes for the case where the NIC's firmware DCBX agent is enabled.
With these fixes, we will return the proper information to lldpad.
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Signed-off-by: David S. Miller <davem@davemloft.net>