Convert the Marvell SEI interrupt controller binding to schema format.
It's a straight-forward conversion of the typical interrupt controller.
Link: https://lore.kernel.org/r/20250505144749.1290862-1-robh@kernel.org
Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
