Set the default docker for kubernetes 1.9 to 17.03.02
Set the default docker for kubernetes 1.9 to 17.03.02

As 17.03.2 has been validated for 1.8 and 1.9.

aledbf/kops,justinsb/kops,kubernetes/kops,blakebarnett/kops,kubernetes/kops,gambol99/kops,aledbf/kops,chrislovecnm/kops,gambol99/kops,gambol99/kops,mad01/kops,gambol99/kops,justinsb/kops,mad01/kops,mad01/kops,tsupertramp/kops,justinsb/kops,mad01/kops,tsupertramp/kops,robinpercy/kops,blakebarnett/kops,robinpercy/kops,chrislovecnm/kops,robinpercy/kops,chrislovecnm/kops,kubernetes/kops,chrislovecnm/kops,blakebarnett/kops,robinpercy/kops,tsupertramp/kops,tsupertramp/kops,aledbf/kops,blakebarnett/kops,aledbf/kops