Phy: Add DT nodes on kirkwood and Dove for the SATA PHY

Add nodes for the two SATA PHYs on kirkwood.
Add node for the one SATA PHY on Dove.
Add pHandles to the PHYs in the sata nodes.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>