ipatests: Tests for ipahealthcheck.ds.nss_ssl
test_nsscheck_cert_expiring is moved under test_ipa_healthcheck_expiring
This patch checks that the 'ipahealthcheck.ds.nss_ssl' check in
healthcheck tool reports the correct status for the "Server-Cert"
about to expire and already expired respectively.
Signed-off-by: Sudhir Menon <sumenon@redhat.com>
Reviewed-By: Florence Blanc-Renaud <frenaud@redhat.com>