Fix docker cleanup script
Fix docker cleanup script

Change-Id: Ibc19f04c98d566427855b2c2cb8eece8be454ea9
Signed-off-by: Rahul Rajagopal <ee8ddc20a07f580d02eaeb4005e332c3cd386de9@hpe.com>

open-switch/infra_project-config,open-switch/infra_project-config