Fix linkismanager allocation ecm error logic

[sjgllgh]

…llocation logic from large to small

What is the purpose of the change

Fix linkismanager allocation ecm error logic,
Obtain the remaining resources of ECM in descending order

Related issues/PRs

Related issues: #4900

Checklist

• I have read the Contributing Guidelines on pull requests.
• I have explained the need for this PR and the problem it solves
• I have explained the changes or the new features added to this PR
• I have added tests corresponding to this change
• I have updated the documentation to reflect this change
• I have verified that this change is backward compatible (If not, please discuss on the Linkis mailing list first)
• If this is a code change: I have written unit tests to fully verify the new behavior.

[peacewong]

LGTM.