STM32N6 Device Tree is missing the second USB port

[james-advatek]

Describe the bug

zephyr/dts/arm/st/n6/stm32n6.dtsi only contains usbotg_hs1, but there are two USB OTG controllers on each of the STM32N6 MCU's.

Regression

• This is a regression.

Steps to reproduce

No response

Relevant log output

Impact

Annoyance – Minor irritation; no significant impact on usability or functionality.

Environment

No response

Additional Context

No response