AOP (Always-On-Processor) DDRSS Commands

The AOP DDRSS commands driver is used to send commands
to the AOP, using the mailbox interface, to affect the
behavior of the DDR.

Required properties

- compatible : "qcom,aop-ddrss-cmds"
- mbox : QMP mailbox phandle and channel identifier

Optional properties:
-mbox-name: name of the mailbox

Example:
	qcom,aop-ddrss-cmds {
		compatible = "qcom,aop-ddrss-cmds";
		mboxes = <&qmp_aop 0>;
	};
