RTEMS | bsps/shared/nandpsu: Invalidate page cache on erase (!1522)

[Kinsey Moore (@opticron)]

Kinsey Moore created a merge request: https://gitlab.rtems.org/rtems/rtos/rtems/-/merge_requests/1522

Project:Branches: opticron/rtems:brmain-nandpsu-erase-invalidate to rtems/rtos/rtems:main
Author: Kinsey Moore
Assignee: Kinsey Moore

## Summary

bsps/shared/nandpsu: Invalidate page cache on erase

When the opportunistic page cache was added, invalidation was only added
for writes. This could result in bad behavior under certain access
patterns where a read is used to verify an erase. This change ensures
that the page cache is invalidated on block erasure.

The second patch reduces the invalidation footprint to what is actually necessary instead of being overbroad.


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View it on GitLab: https://gitlab.rtems.org/rtems/rtos/rtems/-/merge_requests/1522
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