Required properties:
-- compatible: Should be "st,stm32-exti"
+- compatible: Should be:
+ "st,stm32-exti"
+ "st,stm32h7-exti"
- reg: Specifies base physical address and size of the registers
- interrupt-controller: Indentifies the node as an interrupt controller
- #interrupt-cells: Specifies the number of cells to encode an interrupt