tests: Allow seccomp override w/ SWTPM_TEST_SECCOMP_OPT env var

The Ubuntu (PPA) build system executes the build on an environment that
has problems with seccomp profiles. It does not allow us to run the test
suite with swtpm applying its seccomp profile since it fails with a
'bad system call' error. To work around this we introduce the env. variable
SWTPM_TEST_SECCOMP_OPT that we can set to "--seccomp action=none" to avoid
having swtpm apply it seccomp profile.

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