Microtrust TEEI Feature

Required properties
        - compatible: Should be "microtrust,tester-v1.txt"
        - interrupts: teei interrupt number and property

Example:
        utos {
                compatible = "microtrust,tester-v1";
                interrupts = <GIC_SPI 242 IRQ_TYPE_EDGE_RISING>,
                        <GIC_SPI 243 IRQ_TYPE_EDGE_RISING>;
        };
