koordlet: introduce Accelerators feature gate for GPU related features

[jasonliu747]

Signed-off-by: Jason Liu jasonliu747@gmail.com

Ⅰ. Describe what this PR does

Ⅱ. Does this pull request fix one issue?

Ⅲ. Describe how to verify it

Ⅳ. Special notes for reviews

V. Checklist

• I have written necessary docs and comments
• I have added necessary unit tests and integration tests
• All checks passed in make test

[codecov]

Codecov Report

Merging #393 (fbff312) into main (5b320c0) will decrease coverage by 0.03%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main     #393      +/-   ##
==========================================
- Coverage   66.36%   66.33%   -0.04%     
==========================================
  Files         118      118              
  Lines       12063    12064       +1     
==========================================
- Hits         8006     8003       -3     
- Misses       3434     3437       +3     
- Partials      623      624       +1     

Flag	Coverage Δ
unittests	66.33% <100.00%> (-0.04%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
pkg/koordlet/metricsadvisor/collector.go	9.53% <ø> (+0.05%)	⬆️
pkg/koordlet/metricsadvisor/collector_gpu.go	34.61% <100.00%> (-1.70%)	⬇️
pkg/util/system/common_linux.go	53.84% <0.00%> (-3.85%)	⬇️
pkg/koordlet/runtimehooks/reconciler/reconciler.go	81.05% <0.00%> (+2.10%)	⬆️

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[LambdaHJ]

/lgtm

[LambdaHJ]

/lgtm

[hormes]

/approve

[koordinator-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: hormes, LambdaHJ

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