* GPIO controlled RFKILL devices

Required properties:
- compatible		: Must be "rfkill-gpio".
- rfkill-name		: Name of RFKILL device
- rfkill-type		: Type of RFKILL device: 1 for WiFi, 2 for BlueTooth
- shutdown-gpios	: Shutdown GPIO phandle
- reset-gpios		: Reset GPIO phandle

Note: Shutdown or reset, or both, must be valid.

Example:

	bt-rfkill: rfkill@0 {
		compatible = "rfkill-gpio";
		rfkill-name = "bluetooth";
		rfkill-type = <2>;
		shutdown-gpios = <&gpio 0 GPIO_ACTIVE_HIGH>
		reset-gpios = <&gpio 1 GPIO_ACTIVE_LOW>
	};