dt-bindings: ata: Convert marvell,orion-sata to DT schema

Convert the Marvell Orion SATA Controller to DT schema format.

The clocks and clock-names properties were missing. The names for
phy-names were incorrect. The maximum "nr-ports" was determined from the
Linux driver.

Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>