【issue类型】
同一个enclave重复销毁
【issue描述（若是问题请描述重现步骤）】
同一个enclave重复销毁2次，出现段错误
cc_enclave_t *enclave1 = NULL;
cc_enclave_result_t result;
/重复销毁2次/
result = cc_enclave_create(ENCLAVE_1, AUTO_ENCLAVE_TYPE, 0, SECGEAR_DEBUG_FLAG, NULL, 0 , &enclave1);
result = cc_enclave_destroy(enclave1);
result = cc_enclave_destroy(enclave1);

结果：
[zhang@localhost debug]$ ./zlytest/LifeCycleInterface/test_life
+++++++++++++++++++++++++++++++++++++++++++++++ test_repeat_destroy ++++++++++++++++++++++++++++++++++

Segmentation fault (core dumped)

【预期结果】

【处理建议】