Looks like the device might change depending on the boot sequence, so
discover it in the test rather than hardcoding it to /dev/tpmrm0.
Fixes https://github.com/systemd/systemd/issues/43210
Follow-up for 1b1900a6f3
Looks like the device might change depending on the boot sequence, so
discover it in the test rather than hardcoding it to /dev/tpmrm0.
Fixes https://github.com/systemd/systemd/issues/43210
Follow-up for 1b1900a6f3