Orange Pi5 kernel

* Texas Instruments DAC5571 Family

Required properties:
 - compatible: Should contain
    "ti,dac5571"
    "ti,dac6571"
    "ti,dac7571"
    "ti,dac5574"
    "ti,dac6574"
    "ti,dac7574"
    "ti,dac5573"
    "ti,dac6573"
    "ti,dac7573"
 - reg: Should contain the DAC I2C address

Optional properties:
 - vref-supply: The regulator supply for DAC reference voltage

Example:
dac@0 {
	compatible = "ti,dac5571";
	reg = <0x4C>;
	vref-supply = <&vdd_supply>;
};