Request to keep backwards compatible for DTB compatible string format change

[shoudil]

Example for Hamoa IoT EVK (chip version v2.1):

V0.2: => with current uefi, able to bootup with string ""qcom,hamoav2.1-evk".

          conf-19 {
		compatible = "qcom,hamoa-evk";
		fdt = "fdt-hamoa-iot-evk.dtb";
	};
	conf-20 {
		compatible = "qcom,hamoav2.1-evk";
		fdt = "fdt-hamoa-iot-evk.dtb";
	};

V0.3: => To bootup, boot team have to update uefi to match "qcom,hamoa-socv2.1-evk".

	conf-19 {
		compatible = "qcom,hamoa-evk";
		fdt = "fdt-hamoa-iot-evk.dtb";
	};
	conf-20 {
		compatible = "qcom,hamoa-socv2.1-evk";
		fdt = "fdt-hamoa-iot-evk.dtb";
	};

V0.5: => should boot team to update uefi once again to match "qcom,hamoa-evk" ?

	conf-13 {
		compatible = "qcom,hamoa-evk";
		fdt = "fdt-hamoa-iot-evk.dtb", "fdt-hamoa-iot-evk-camera-imx577.dtbo";
	};