openenclave: EEID_PLUGIN test failed, having memory leak

eeid_plugin test failed for both master and feature/sgxlkl-support branch on ACC VM. May be a potential regression issue.

Here is the error output:

Start 254: tests/eeid_plugin
1/1 Test #254: tests/eeid_plugin ................Child aborted***Exception:   8.13 sec

0% tests passed, 1 tests failed out of 1

Total Test time (real) =   8.14 sec

The following tests FAILED:
        254 - tests/eeid_plugin (Child aborted)
Errors while running CTest