* Digi Watchdog Timer for MCA of ConnectCore 6UL

Required properties:
- compatible: must be "digi,mca-cc6ul-wdt".

Optional properties:
- digi,timeout-sec: contains the watchdog timeout in seconds.
- digi,irq-no-reset: if present, the watchdog will generate an interrupt instead
	of a system reset.
- digi,full-reset: if present, the watchdog will perform a full system reset,
        including the MCA. Otherwise, only the microprocessor is reset. Note
        that this option requires the system to be configured to generate a
        reset and not an interrupt.

Example:
	mca: mca-cc6ul@7e {
		watchdog {
			compatible = "digi,mca-cc6ul-wdt";
			digi,timeout-sec = <15>;
			digi,irq-no-reset;
		};
	};
