openscap - IBM Z (s390x) is not detected as a 64bit architecture

Issue

• Despite having "-a always,exit -F arch=b32 -S stime -k audit_time_rules" audit rule defined, openscap still fails xccdf_org.ssgproject.content_rule_audit_rules_time_stime rule on s390x

  # auditctl -l
  -a always,exit -F arch=b32 -S stime -F key=audit_time_rules
  
  # oscap xccdf eval --profile xccdf_org.ssgproject.content_profile_C2S \
                     --rule xccdf_org.ssgproject.content_rule_audit_rules_time_stime \
                      /usr/share/xml/scap/ssg/content/ssg-rhel7-ds.xml
  Title   Record Attempts to Alter Time Through stime
  Rule    xccdf_org.ssgproject.content_rule_audit_rules_time_stime
  Ident   CCE-27299-7
  Result  fail