Enable AMDSMI test execution in Linux component test jobs

[araravik-psd]

Summary

Adds amdsmi to the Linux test matrix as part of fetch_test_configuration.py and updates test_amdsmi.py so it can run as part of the test flow instead of being skipped as manual-only.

Changes

• Adds a new amdsmi test entry in test matrix fetch_test_configuration.py
• Enables Linux-only AMDSMI test execution with a 10-minute timeout.
• Removes the unconditional pytest skip from test_amdsmi.py.
• Adds platform detection for Linux/Windows-specific filtering.
• Preserves GTest sharding support for AMDSMI tests.
• Adds arch-specific excludes for known AMDSMI failures on gfx90a, gfx110X-all, and gfx103X-all.
• Adds validation that amdsmitst exists and is executable before running.
• Adds logging for selected GPU family, platform key, and final excluded test list.

Notes

Once this PR lands amdsmi tests could be removed from sanity tests, #4243

Test run:

https://github.com/ROCm/TheRock/actions/runs/26655442243/job/78565544860