Add mysqlxtest to tools removed from docker image

(cherry picked from commit 14d2f7c04a7f10e45b1f0a9674178ebb6e386983)

Author: bjornmu

packaging/rpm-docker/mysql.spec.in

@@ -183,8 +183,8 @@ for f in innochecksum myisamchk myisam_ftdump myisamlog myisampack mysqladmin \
          mysqlbinlog mysqlcheck mysql_client_test mysql_config_editor \
          mysqld_multi mysqld_safe mysqldumpslow mysql_embedded mysqlimport \
          mysql_plugin mysql_secure_installation mysqlshow mysqlslap  mysqltest \
-         perror replace  resolveip  resolve_stack_dump lz4_decompress \
-         zlib_decompress; do
+         mysqlxtest perror replace resolveip resolve_stack_dump \
+         lz4_decompress zlib_decompress; do
     rm -f %{buildroot}%{_bindir}/$f
 done