ARM: dts: stm32: Add wakeup management on stm32mp15x UART nodes

Add EXTI lines to the following UART nodes which are used for
wakeup from CStop.
- EXTI line 26 to USART1
- EXTI line 27 to USART2
- EXTI line 28 to USART3
- EXTI line 29 to USART6
- EXTI line 30 to UART4
- EXTI line 31 to UART5
- EXTI line 32 to UART7
- EXTI line 33 to UART8

Signed-off-by: Erwan Le Ray <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

arch/arm/boot/dts/stm32mp151.dtsi

···
 		usart2: serial@4000e000 {
 			compatible = "st,stm32h7-uart";
 			reg = <0x4000e000 0x400>;
-			interrupts = <GIC_SPI 38 IRQ_TYPE_LEVEL_HIGH>;
+			interrupts-extended = <&exti 27 IRQ_TYPE_LEVEL_HIGH>;
 			clocks = <&rcc USART2_K>;
+			wakeup-source;
 			status = "disabled";
 		};
 
 		usart3: serial@4000f000 {
 			compatible = "st,stm32h7-uart";
 			reg = <0x4000f000 0x400>;
-			interrupts = <GIC_SPI 39 IRQ_TYPE_LEVEL_HIGH>;
+			interrupts-extended = <&exti 28 IRQ_TYPE_LEVEL_HIGH>;
 			clocks = <&rcc USART3_K>;
+			wakeup-source;
 			status = "disabled";
 		};
 
 		uart4: serial@40010000 {
 			compatible = "st,stm32h7-uart";
 			reg = <0x40010000 0x400>;
-			interrupts = <GIC_SPI 52 IRQ_TYPE_LEVEL_HIGH>;
+			interrupts-extended = <&exti 30 IRQ_TYPE_LEVEL_HIGH>;
 			clocks = <&rcc UART4_K>;
+			wakeup-source;
 			status = "disabled";
 		};
 
 		uart5: serial@40011000 {
 			compatible = "st,stm32h7-uart";
 			reg = <0x40011000 0x400>;
-			interrupts = <GIC_SPI 53 IRQ_TYPE_LEVEL_HIGH>;
+			interrupts-extended = <&exti 31 IRQ_TYPE_LEVEL_HIGH>;
 			clocks = <&rcc UART5_K>;
+			wakeup-source;
 			status = "disabled";
 		};
 
···
 		uart7: serial@40018000 {
 			compatible = "st,stm32h7-uart";
 			reg = <0x40018000 0x400>;
-			interrupts = <GIC_SPI 82 IRQ_TYPE_LEVEL_HIGH>;
+			interrupts-extended = <&exti 32 IRQ_TYPE_LEVEL_HIGH>;
 			clocks = <&rcc UART7_K>;
+			wakeup-source;
 			status = "disabled";
 		};
 
 		uart8: serial@40019000 {
 			compatible = "st,stm32h7-uart";
 			reg = <0x40019000 0x400>;
-			interrupts = <GIC_SPI 83 IRQ_TYPE_LEVEL_HIGH>;
+			interrupts-extended = <&exti 33 IRQ_TYPE_LEVEL_HIGH>;
 			clocks = <&rcc UART8_K>;
+			wakeup-source;
 			status = "disabled";
 		};
 
···
 		usart6: serial@44003000 {
 			compatible = "st,stm32h7-uart";
 			reg = <0x44003000 0x400>;
-			interrupts = <GIC_SPI 71 IRQ_TYPE_LEVEL_HIGH>;
+			interrupts-extended = <&exti 29 IRQ_TYPE_LEVEL_HIGH>;
 			clocks = <&rcc USART6_K>;
+			wakeup-source;
 			status = "disabled";
 		};
 
···
 		usart1: serial@5c000000 {
 			compatible = "st,stm32h7-uart";
 			reg = <0x5c000000 0x400>;
-			interrupts = <GIC_SPI 37 IRQ_TYPE_LEVEL_HIGH>;
+			interrupts-extended = <&exti 26 IRQ_TYPE_LEVEL_HIGH>;
 			clocks = <&rcc USART1_K>;
+			wakeup-source;
 			status = "disabled";
 		};