dt-bindings: interrupt-controller: Add SoC-specific compatible string to Marvell ODMI

As requested by Rob Herring, this commit adds a SoC-specific
compatible string to the Marvell ODMI DT binding.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Link: https://lkml.kernel.org/r/1456327494-31358-1-git-send-email-thomas.petazzoni@free-electrons.com


Signed-off-by: Jason Cooper <jason@lakedaemon.net>