update docker related

xCAT-test/autotest/testcase/installation/ubuntu_full_installation_vm_docker

@@ -23,7 +23,7 @@ check:rc==0
 cmd:rinstall $$CN osimage=__GETNODEATTR($$CN,os)__-__GETNODEATTR($$CN,arch)__-install-dockerhost
 check:rc==0
 check:output=~Provision node\(s\)\: $$CN
-cmd:sleep 900
+
 cmd:a=0;while ! `lsdef -l $$CN|grep status|grep booted >/dev/null`; do sleep 10;((a++));if [ $a -gt 60 ];then break;fi done
 
 cmd:ping $$CN -c 3