RTEMS | bsps/stm32h7: Honor the intent of the MPU alignment option (!189)

[Kinsey Moore (@opticron)]

Kinsey Moore created a merge request: https://gitlab.rtems.org/rtems/rtos/rtems/-/merge_requests/189

Project:Branches: opticron/rtems:stm32h7-mpu-fix to rtems/rtos/rtems:main
Author:   Kinsey Moore
Assignee: Kinsey Moore



## Summary

bsps/stm32h7: Honor the intent of the MPU alignment option

Currently, if a BSP is built without MPU alignment enforcement, the MPU
is still enabled and can produce a non-functional binary since code can
be mixed with data within a memory region and memory regions are marked
as read-only or no-execute based on section addresses and sizes leading
to overlapping regions being defined which causes the later-defined
region to take precedence. This change disables the MPU when alignment
is not enforced, allowing the binary to function.


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View it on GitLab: https://gitlab.rtems.org/rtems/rtos/rtems/-/merge_requests/189
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