Add tests for enrolling and unlocking. Various cases are tested:
- Default PCR 7 policy w/o PIN, good and bad cases (wrong PCR)
- PCR 7 + PIN policy, good and bad cases (wrong PCR, wrong PIN)
- Non-default PCR 0+7 policy w/o PIN, good and bad cases (wrong PCR 0)
v2: rename test, fix tss2 library installation, fix CI failures
v3: fix ppc64, load module
