boards: arduino_nicla_vision: fix hardware information

The board shares many features with other Arduinos based on STM32H747
(like the HSE in bypass mode).
Once https://github.com/zephyrproject-rtos/zephyr/pull/76542

 is merged,
PF1550 support should be added too to allow switching IO voltage
from 3v3 to 1v8

Signed-off-by: Martino Facchin <m.facchin@arduino.cc>