Incorrect return value from sgx_tvl_verify_qve_report_and_identity in 1.22

The test added line [251](https://github.com/intel/SGXDataCenterAttestationPrimitives/blob/main/QuoteVerification/dcap_tvl/sgx_dcap_tvl.cpp#L251) of `sgx_dcap_tvl.cpp` is at odd with line 186, which is now ignored. `sgx_ret` should probably be set back to `SGX_SUCCESS` on line 186, or maybe the test of line 251 should also check that `ret` has not been set to something different from `SGX_QL_ERROR_UNEXPECTED`.