Added ndb_top to cluster 7.6 docker rpms

(cherry picked from commit eebe6fcd6ec5a336575e9082ce86af3ca4110d73)

Author: bkandasa

packaging/rpm-docker/mysql.spec.in

@@ -258,6 +258,7 @@ rm -r $(readlink var) var
 
 %if 0%{?cluster}
 %attr(755, root, root) %{_bindir}/ndb_mgm
+%attr(755, root, root) %{_bindir}/ndb_top
 %attr(755, root, root) %{_sbindir}/ndb_mgmd
 %attr(755, root, root) %{_sbindir}/ndbd
 %attr(755, root, root) %{_sbindir}/ndbmtd