enable s390x CI jobs

Author: grisumbras

.drone.star

@@ -14,8 +14,8 @@ windowsglobalimage="cppalliance/dronevs2019"
 
 def main(ctx):
   return [
-  # linux_cxx("Clang 12 s390x", "clang++-12", packages="clang-12 libstdc++-9-dev", llvm_os="focal", llvm_ver="12", buildtype="boost", buildscript="drone", image="cppalliance/droneubuntu2004:multiarch", environment={'B2_TOOLSET': 'clang-12', 'B2_CXXSTD': '17,20'}, arch="s390x", globalenv=globalenv),
-  # linux_cxx("gcc 11 s390x", "g++-11", packages="g++-11", buildtype="boost", buildscript="drone", image="cppalliance/droneubuntu2004:multiarch", environment={'B2_TOOLSET': 'gcc-11', 'B2_CXXSTD': '17,2a'}, arch="s390x", globalenv=globalenv),
+  linux_cxx("Clang 12 s390x", "clang++-12", packages="clang-12 libstdc++-9-dev", llvm_os="focal", llvm_ver="12", buildtype="boost", buildscript="drone", image="cppalliance/droneubuntu2004:multiarch", environment={'B2_TOOLSET': 'clang-12', 'B2_CXXSTD': '17,20'}, arch="s390x", globalenv=globalenv),
+  linux_cxx("gcc 11 s390x", "g++-11", packages="g++-11", buildtype="boost", buildscript="drone", image="cppalliance/droneubuntu2004:multiarch", environment={'B2_TOOLSET': 'gcc-11', 'B2_CXXSTD': '17,2a'}, arch="s390x", globalenv=globalenv),
   linux_cxx("Clang 12 arm64", "clang++-12", packages="clang-12 libstdc++-9-dev", llvm_os="focal", llvm_ver="12", buildtype="boost", buildscript="drone", image="cppalliance/droneubuntu2004:multiarch", environment={'B2_TOOLSET': 'clang-12', 'B2_CXXSTD': '17,20', 'DRONE_JOB_UUID': '7719a1c783m'}, arch="arm64", globalenv=globalenv),
   linux_cxx("gcc 11 arm64", "g++-11", packages="g++-11", buildtype="boost", buildscript="drone", image="cppalliance/droneubuntu2004:multiarch", environment={'B2_TOOLSET': 'gcc-11', 'B2_CXXSTD': '17,2a', 'DRONE_JOB_UUID': '0716d9708dm'}, arch="arm64", globalenv=globalenv),
   linux_cxx("docs", "g++", packages="docbook docbook-xml docbook-xsl xsltproc libsaxonhe-java default-jre-headless flex libfl-dev bison unzip rsync", buildtype="docs", buildscript="drone", image="cppalliance/droneubuntu1804:1", environment={'COMMENT': 'docs', 'DRONE_JOB_UUID': 'b6589fc6ab'}, globalenv=globalenv),