tests: Repeat TSS command if it fails

Repeat tss command since it may fail if the test case is run alone (-29).
The reason for this is that the command may fail because of this here:

https://github.com/stefanberger/libtpms/blob/stable-0.9/src/tpm2/SessionProcess.c#L1204

Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
1 file changed