Add s390x support to RHEL 8 RPM pkg

Signed-off-by: Kun-Lu <kun.lu@ibm.com>
diff --git a/Makefile b/Makefile
index e113dd1..7e8940f 100644
--- a/Makefile
+++ b/Makefile
@@ -171,14 +171,13 @@
 centos9: SM_VER=78
 centos9: sm-ver-rpm make-rpmbuild centos
 
-# Rocky 8 is a CentOS 8 alias
-rocky-8: centos-8
-rocky-8.6: centos-8
-rocky-8.7: centos-8
-
-# Rocky 9 is a CentOS 9 alias
-rocky-9: centos-9
-# s390x RHEL clone 9 based
+# Almalinux 8 is a CentOS 8 alias
+almalinux-8: centos-8
+# Almalinux 9 is a CentOS 9 alias
+almalinux-9: centos-9
+# s390x RHEL 8 clone based
+s390x-centos-8: centos-8
+# s390x RHEL 9 clone based
 s390x-centos-9: centos-9
 
 # aarch64 RHEL-based
diff --git a/build.sh b/build.sh
index 9fd6e06..4e8af25 100755
--- a/build.sh
+++ b/build.sh
@@ -112,6 +112,7 @@
       CONTAINERARCH="${arch}" build-couch ${base}
     done
   done
+  CONTAINERARCH="s390x" build-couch centos-8
   CONTAINERARCH="s390x" build-couch centos-9
 }