Merge branch 'thunderx-new-features'

Sunil Goutham says:

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net: thunderx: Support for 80xx, RED, PFC e.t.c

This patch series adds support for SLM modules present on 80xx
silicon, enables ramdom early discard, backpressure generation,
PFC and some ethtool changes to display supported link modes e.t.c.
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Signed-off-by: David S. Miller <davem@davemloft.net>