Merge branch 'bcm7xxx'

Florian Fainelli says:

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Broadcom BCM7xxx PHY updates for new entries

Another week, another set of updates for the Broadcom BCM7xxx PHY driver.  This
patch set cleanups the existing definitions, adds a macro to ease the addition
of future chips, and finally add two new SoCs to the list of supported chips.

Resending since the first patch did not make it to the list, sorry about that.

Changes in v2:
- rephrased commit message for patch 1 to make it pass majordomo
  capital triple X was rejected
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Signed-off-by: David S. Miller <davem@davemloft.net>