Since, at least the old framework, checks for the presence of the file
at the end and marks the whole test as skipped if it exists.
Resolves: systemd/systemd-centos-ci#728
Having these named differently than the test itself mostly creates
unecessary confusion and makes writing logic against the tests harder
so let's rename the testsuite-xx units and scripts to just use the
test name itself.
Frantisek Sumsal
Daan De Meyer