Hotfix/MPU Part 3

[FoniksFox]

The MPU dynamic regions (Non-Cached regions) were being configured with linker symbol values instead of addresses, which caused undefined behaviour that even could acouse hardfault.

[github-actions]

ST-LIB Release Plan

• Current version: 5.2.0
• Pending changesets: 3
• Highest requested bump: minor
• Next version if merged now: 5.3.0

Pending changes

• minor add an ethernet connected check (.changesets/add_check_ethernet.md)
• patch MPUDomain dynamic regions were configured using the linker symbol values instead of their addresses (that is the correct way of using linker symbols). That made non-cached regions cached, and caused harware undefined behaviour. (.changesets/hotfix-mpu-synamic-regions-linker-symbols.md)
• patch fix prescaler calculation in scheduler (.changesets/hotfix-sched-prescaler.md)

[jorgecanut]

Worked for me

[oganigl]

I've seen it work in live.