Port 80 for apt-key from keyserver.ubuntu.com

Change-Id: I87d6d058e73ca97cc4a2a9f114856c36091ce1df
Issue-Id: DCAEGEN2-172
Signed-off-by: Andrew Gauld <ag1282@att.com>
diff --git a/cloud_init/cdap-init.sh b/cloud_init/cdap-init.sh
index 5c4d763..d9df3ba 100644
--- a/cloud_init/cdap-init.sh
+++ b/cloud_init/cdap-init.sh
@@ -38,7 +38,7 @@
 wget -qO- http://public-repo-1.hortonworks.com/HDP/ubuntu16/2.x/updates/2.6.0.3/hdp.list >/etc/apt/sources.list.d/hdp.list
 wget -qO- http://repository.cask.co/ubuntu/precise/amd64/cdap/4.1/cask.list >/etc/apt/sources.list.d/cask.list
 wget -qO- http://repository.cask.co/ubuntu/precise/amd64/cdap/4.1/pubkey.gpg | apt-key add -
-apt-key adv --recv-keys --keyserver keyserver.ubuntu.com B9733A7A07513CAD
+apt-key adv --recv-keys --keyserver hkp://keyserver.ubuntu.com:80 B9733A7A07513CAD
 apt-get update
 #
 # install software from apt repositories