fix #3032 SeccompSecurity default path needs more consideration

[Novicei]

Ⅰ. Describe what this PR did

When you use SeccompSecurity, SeccompProfilePath can come from multiple sources, and pouch does not do the bottom line for the default runtime. You can see the logic in k8s and containerd, and the modifications need to be bottom line.

Ⅱ. Does this pull request fix one issue?

3032

Ⅲ. Why don't you add test cases (unit test/integration test)? (你真的觉得不需要加测试吗？)

yes

Ⅳ. Describe how to verify it

Ⅴ. Special notes for reviews

[CLAassistant]

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