RDMA/nes: Add support for new SFP+ PHY

Add new register settings for new SFP+ PHY/firmware.
Add new PHY to to nes_netdev_get/set_settings.

Signed-off-by: Chien Tung <chien.tin.tung@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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