tpm_device: add case unstartable vm

[dzhengfy]

Case ID: xxx-188140

[dzhengfy]

 (1/8) type_specific.io-github-autotest-libvirt.virtual_devices.tpm_device.negative_test.external.source_type.nonexist: WARN: Test passed but there were warnings during execution. Check the log for details. (4.71 s)
 (2/8) type_specific.io-github-autotest-libvirt.virtual_devices.tpm_device.negative_test.external.source_type.empty: WARN: Test passed but there were warnings during execution. Check the log for details. (4.86 s)
 (3/8) type_specific.io-github-autotest-libvirt.virtual_devices.tpm_device.negative_test.external.source_type.invalid:WARN: Test passed but there were warnings during execution. Check the log for details. (4.92 s)
 (4/8) type_specific.io-github-autotest-libvirt.virtual_devices.tpm_device.negative_test.external.source_mode.nonexist: WARN: Test passed but there were warnings during execution. Check the log for details. (5.05 s)
 (5/8) type_specific.io-github-autotest-libvirt.virtual_devices.tpm_device.negative_test.external.source_mode.empty: WARN: Test passed but there were warnings during execution. Check the log for details. (4.87 s)
 (6/8) type_specific.io-github-autotest-libvirt.virtual_devices.tpm_device.negative_test.external.source_mode.invalid:WARN: Test passed but there were warnings during execution. Check the log for details. (4.88 s)
 (7/8) type_specific.io-github-autotest-libvirt.virtual_devices.tpm_device.negative_test.external.source_path.nonexist: WARN: Test passed but there were warnings during execution. Check the log for details. (5.01 s)
 (8/8) type_specific.io-github-autotest-libvirt.virtual_devices.tpm_device.negative_test.external.source_path.empty: WARN: Test passed but there were warnings during execution. Check the log for details. (5.11 s)