*HTU21 - Measurement-Specialties htu21 temperature & humidity sensor and humidity part of MS8607 sensor

Required properties:

	- compatible: should be "meas,htu21" or "meas,ms8607-humidity"
	- reg: I2C address of the sensor

Example:

htu21@40 {
	compatible = "meas,htu21";
	reg = <0x40>;
};
