* Qualcomm MSM IRQ Router

Required properties:
- cell-index: irq router hardware core index
- compatible :
    - "qcom,irqrouter"
- reg : offset and length of the register set for the device
    for the irqrouter operating in compatible mode.
- reg-names : should specify relevant names to each reg property defined.

Example:

   qcom,irqrouter@0xfda0c000 {
       cell-index = <0>;
       compatible = "qcom,irqrouter";
       reg = <0xfda00000 0x100>;
       reg-names = "irqrouter";
   };