[RESEND PATCH 2/3] ARM: dts: stm32: add missed arm,num-irq-priority-bits for stm32f746

[Dario Binacchi]

Add missed arm,num-irq-priority-bits to fix below CHECK_DTBS warning:

arch/arm/boot/dts/st/stm32f746-disco.dtb: interrupt-controller at e000e100 (arm,armv7m-nvic): 'arm,num-irq-priority-bits' is a required property
	from schema $id: http://devicetree.org/schemas/interrupt-controller/arm,nvic.yaml

Signed-off-by: Dario Binacchi <dario.binacchi at amarulasolutions.com>
---

 arch/arm/boot/dts/st/stm32f746.dtsi | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm/boot/dts/st/stm32f746.dtsi b/arch/arm/boot/dts/st/stm32f746.dtsi
index 208f8c6dfc9d..82912cf9c4e2 100644
--- a/arch/arm/boot/dts/st/stm32f746.dtsi
+++ b/arch/arm/boot/dts/st/stm32f746.dtsi
@@ -721,6 +721,10 @@ usbotg_fs: usb at 50000000 {
 	};
 };
 
+&nvic {
+	arm,num-irq-priority-bits = <4>;
+};
+
 &systick {
 	clocks = <&rcc 1 0>;
 	status = "okay";
---
base-commit: 075b74841bd0065a3bda3440873c747938e69b68
branch: stm32-nvic-irq-priority-bits

-- 
2.43.0