AETHER-618 Add missing kubernetes-cni dependency

Change-Id: I81f5d202405fdea0c45b5d22c1048b9eb1a7cc65
diff --git a/packer/provision/basebuild.sh b/packer/provision/basebuild.sh
index ad41f1d..4b80119 100644
--- a/packer/provision/basebuild.sh
+++ b/packer/provision/basebuild.sh
@@ -100,6 +100,7 @@
         "kubeadm=1.12.7-*" \
         "kubelet=1.12.7-*" \
         "kubectl=1.12.7-*" \
+        "kubernetes-cni=0.7.5-*" \
         less \
         libmysqlclient-dev \
         libpcap-dev \