* Qualcomm MSM CSI Phy

Required properties:
- cell-index: csi phy hardware core index
- compatible :
    - "qcom,csiphy"
- reg : offset and length of the register set for the device
    for the csiphy operating in compatible mode.
- reg-names : should specify relevant names to each reg property defined.
- interrupts : should contain the csiphy interrupt.
- interrupt-names : should specify relevant names to each interrupts
  property defined.

Example:

   qcom,csiphy@fda0ac00 {
       cell-index = <0>;
       compatible = "qcom,csiphy";
       reg = <0xfda0ac00 0x200>;
       reg-names = "csiphy";
       interrupts = <0 78 0>;
       interrupt-names = "csiphy";
   };
