system_cores support set specific pool

[luomingmeng]

What type of PR is this?

Enhancements

What this PR does / why we need it:

In certain situations, a pod with the system_cores QoS level should be bound to specific CPU pools, such as the reserve pool, to prevent impact on critical pools.

Which issue(s) this PR fixes:

Special notes for your reviewer:

[codecov]

Codecov Report

Attention: Patch coverage is 62.10191% with 119 lines in your changes missing coverage. Please review.

Project coverage is 57.23%. Comparing base (7104feb) to head (098b202).
Report is 7 commits behind head on main.

Files with missing lines	Patch %	Lines
...memory/dynamicpolicy/policy_allocation_handlers.go	64.34%	29 Missing and 17 partials ⚠️
...ns/cpu/dynamicpolicy/policy_allocation_handlers.go	53.60%	35 Missing and 10 partials ⚠️
...lugins/cpu/dynamicpolicy/policy_advisor_handler.go	0.00%	11 Missing ⚠️
...agent/qrm-plugins/cpu/dynamicpolicy/state/state.go	60.00%	3 Missing and 3 partials ⚠️
...nt/qrm-plugins/memory/dynamicpolicy/state/state.go	85.18%	2 Missing and 2 partials ⚠️
pkg/agent/qrm-plugins/cpu/dynamicpolicy/policy.go	40.00%	3 Missing ⚠️
.../agent/qrm-plugins/cpu/dynamicpolicy/state/util.go	71.42%	1 Missing and 1 partial ⚠️
...ugins/memory/dynamicpolicy/policy_hint_handlers.go	75.00%	1 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #680      +/-   ##
==========================================
+ Coverage   57.08%   57.23%   +0.15%     
==========================================
  Files         568      568              
  Lines       54760    54967     +207     
==========================================
+ Hits        31258    31459     +201     
+ Misses      19591    19562      -29     
- Partials     3911     3946      +35     

Flag	Coverage Δ
unittest	57.23% <62.10%> (+0.15%)	⬆️

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