Fix typo in dockerfile
Fix typo in dockerfile

Change-Id: I469822b1a20d63d509a5233f768ae78ec7f491fe

jscMR/corbel-composr,corbel-platform/corbel-composr,jarpi/corbel-composr,rafinskipg/corbel-composr,milingo/corbel-composr,bq/corbel-composer