Qualcomm Technologies, Inc NTx NTAG device

Near Field Communication wireless tag integrated circuit device(NTAG) is compliant
with NFC Forum Type 2 Tag specification.

Required properties:

- compatible: "qcom,nq-ntag"
- reg: i2c slave address.
- pinctrl-names, pinctrl-0, pinctrl-1: references to our pinctrl settings
- qcom,nq-ntagfd : specific gpio for field detect interrupt.

Example:

	nq-ntag@55 {
		compatible = "qcom,nq-ntag";
		reg = <0x55>;
		qcom,nq-ntagfd = <&tlmm 22 0x00>;
		interrupt-parent = <&tlmm>;
		interrupts = <22 0>;
		interrupt-names = "ntag_fd";
		pinctrl-names = "ntag_active","ntag_suspend";
		pinctrl-0 = <&ntag_int_active>;
		pinctrl-1 = <&ntag_int_suspend>;
	};