nilo19: Cherry pick of #394 to release 0.6: fix readyz probe

JobBuild
396
09-21 12:57
pull-cloud-provider-azure-check 1308027402844114944
pull-cloud-provider-azure-e2e 1308027402869280768
pull-cloud-provider-azure-e2e-ccm 1308027402915418112
pull-cloud-provider-azure-e2e-ccm-vmss-basic-lb 1308027402890252288
pull-cloud-provider-azure-unit 1308027402936389632