I suspect an openocd configuration issue for nucleo_h743zi

[schererant]

@erwango I do have the same problem as @maxstreitberger in #50306, but with the nucleo_h743zi.

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         @maxstreitberger I suspect an openocd configuration issue.

Would you mind trying to replicate the configuration provided for [nucleo_h743zi]

(https://github.com/zephyrproject-rtos/zephyr/blob/main/boards/arm/nucleo_h743zi/support/openocd.cfg).

Regarding nuclo_f429zi, I'll open a dedicated ticket, as I've found the root cause, and I'm not sure it applies to H7

Originally posted by @erwango in #50306 (comment)