Add generic PMA suspend and resume callback functions for C45 PHYs.
Signed-off-by: NRadu Pirea (NXP OSS) <radu-nicolae.pirea@oss.nxp.com>
Reviewed-by: NAndrew Lunn <andrew@lunn.ch>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>