net: phy: micrel: 1588 support for LAN8814 phy

Add support for 1588 in LAN8814 phy driver.
It supports 1-step and 2-step timestamping.

Co-developed-by: Horatiu Vultur <[email protected]>
Signed-off-by: Divya Koppera <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

Author: Divya-Koppera