kselftest-tpm2 tests are failing if TPM is owned

[nuclearcat]

TPM2 might be owned by OS on some devices, for example Chromebooks, in this case they will not pass kselftest-tpm2 from debos, with error similar to this:

  # selftests: tpm2: test_smoke.sh
 2317 08:53:50.211041  # WARNING:esys:src/tss2-esys/api/Esys_Clear.c:291:Esys_Clear_Finish() Received TPM Error 
 2318 08:53:50.221050  # ERROR:esys:src/tss2-esys/api/Esys_Clear.c:97:Esys_Clear() Esys Finish ErrorCode (0x0000098e) 
 2319 08:53:50.230944  # ERROR: Esys_Clear(0x98E) - tpm:session(1):the authorization HMAC check failed and DA counter incremented
 2320 08:53:50.289963  # ERROR: Unable to run tpm2_clear
 2321 08:53:50.293086  
 2322 08:53:51.383355  # test_read_partial_overwrite (tpm2_tests.SmokeTest) ... ERROR
 2323 08:53:51.393418  # test_read_partial_resp (tpm2_tests.SmokeTest) ... ERROR
 2324 08:53:51.399467  # Exception ignored in: <function Client.__del__ at 0x7f69c37f5dc0>
 2325 08:53:51.402652  # Traceback (most recent call last):
 2326 08:53:51.412530  #   File "/lava-8137134/0/tests/1_kselftest-tpm2/automated/linux/kselftest/output/tpm2/tpm2.py", line 375, in __del__
 2327 08:53:51.416224  #     if self.tpm:
 2328 08:53:51.422443  # AttributeError: 'Client' object has no attribute 'tpm'
 2329 08:53:51.426104  # test_seal_with_auth (tpm2_tests.SmokeTest) ... ERROR
 2330 08:53:51.432442  # Exception ignored in: <function Client.__del__ at 0x7f69c37f5dc0>
 2331 08:53:51.435526  # Traceback (most recent call last):
 2332 08:53:51.439420  

This put under question reliability of all kselftest-tpm2 tests and pending PR related to them, such as:
#1534
#1034