dt-bindings: phy: Convert marvell,armada-380-comphy to DT schema

Convert the Marvell Armada 38x combo PHY binding to DT schema format.
It's a straight forward conversion.

Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://lore.kernel.org/r/20250607212541.742427-1-robh@kernel.org


Signed-off-by: Vinod Koul <vkoul@kernel.org>