Ahmed Mansour created a merge request: 
https://gitlab.rtems.org/rtems/rtos/rtems/-/merge_requests/1131

Project:Branches: Mansour/rtems:remove-or1k-arch to rtems/rtos/rtems:main
Author:   Ahmed Mansour



## Summary

or1k: Remove architecture and BSPs

This commit removes the or1k (OpenRISC 1000) architecture support

from RTEMS as part of its deprecation for the 8.1 release.

The following directories and all their contents are removed:

- cpukit/score/cpu/or1k/: CPU architecture port including context

  switching, exception handling, and CPU-specific headers

- bsps/or1k/: All or1k BSPs including the generic_or1k BSP and

  shared BSP components

This removal includes:

- CPU context initialization and switching assembly code

- Exception handling framework

- CPU-specific headers (or1k.h, or1k-utility.h)

- BSP startup code and linkcmds

- BSP console, clock, and timer drivers

- BSP headers and configuration files

The or1k architecture was previously deprecated in #5321 and is

now being removed to streamline the codebase for RTEMS 8.1.

Closes #5322


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