Add stm32h755II chip

[jfbblue0922]

Summary

Our flight controller uses stm32h7x5. We are issuing this PR to make it compatible with PX4.

Impact

Add CONFIG_STM32H7_STM32H7X5XX into the program.

Testing

We have confirmed that the firmware works correctly on PX4.

[davids5]

@jfbblue0922 The should go upstream to Nuttx and com back to PX4 as a backport.

Please have a look at the way the the part number chooses the Pinning and see if you can support more versions of the stm32h7x5. Once it is upstream ping me in that PR and we will review it there.

[jfbblue0922]

@davids5

Thank you for your advice.

I added 'peripherals' to all stm32h7x5xx chips.

What is upstream? We cannot understand because we lack knowledge. Please tell me what we should do next.

[davids5]

@davids5

Thank you for your advice.

I added 'peripherals' to all stm32h7x5xx chips.

What is upstream? We cannot understand because we lack knowledge. Please tell me what we should do next.

Do your pull request against. https://github.com/apache/nuttx

I and others will review it upstream.

We will then Backport it to this repo once it is accepted upstream.

[jfbblue0922]

@davids5

we have made PR. https://github.com/apache/nuttx

thank you.

[jfbblue0922]

@davids5

apache nuttx master has been merged, so I pushed PX4 nuttx to this PR.

Thank you.

[davids5]

@jfbblue0922 I did the backport from upstream here https://github.com/PX4/NuttX/pull/311

Please see https://github.com/PX4/PX4-Autopilot/pull/23265. Please test it and ensure it works for you. Then close this PR

[davids5]

Replaced by https://github.com/PX4/NuttX/pull/311 & https://github.com/PX4/NuttX/pull/313