fixed spelling of 'Bootstrapping' in tools/kolla-ansible

'Bootstrapping' was spelt with one p - added the second p so the
word becomes a verb nicely.

TrivialFix

Change-Id: I126a5c253408af70d6d0a3be6e59270f385a00e3

tools/kolla-ansible

@@ -294,7 +294,7 @@ EOF
         fi
         ;;
 (bootstrap-servers)
-        ACTION="Bootstraping servers"
+        ACTION="Bootstrapping servers"
         PLAYBOOK="${BASEDIR}/ansible/kolla-host.yml"
         EXTRA_OPTS="$EXTRA_OPTS -e kolla_action=bootstrap-servers"
         ;;