tests: Get the packages for pkcs11 testing on the CI/CD system

Get the packages for pkcs11 testing on the CI/CD system, where available.
On those system where it is not available, skip the two tests.

The following distros cannot run the pkcs11 tests:

- Alpine: package with pkcs11 engine not available
- CentOS7: softhsm 2.1.0 is too old for tests to work; tests also fail when
           trying to sign with pkcs11 URI using openssl command line tool
- OpenSuSE Leap: softhsm package not available in main repo

Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>

ci/tumbleweed.sh

@@ -42,6 +42,9 @@ zypper --non-interactive install --force-resolution --no-recommends \
 	which \
 	xsltproc
 
+zypper --non-interactive install --force-resolution --no-recommends \
+	gnutls openssl-engine-libp11 softhsm || true
+
 if [ -f /usr/lib/ibmtss/tpm_server -a ! -e /usr/local/bin/tpm_server ]; then
 	ln -s /usr/lib/ibmtss/tpm_server /usr/local/bin
 fi