Fixes EPEL repository URL Error

yum install
http://dl.fedoraproject.org/pub/epel/7/x86_64/e/epel-release-7-2.noarch.rpm
should be:
yum install
http://dl.fedoraproject.org/pub/epel/7/x86_64/e/epel-release-7-5.noarch.rpm

Change-Id: Iae3e5adb26201a8024fa1b7b642b963186f69872
Closes-bug: #1402945
(cherry picked from commit 4f34cb1276f9714bdd077b2f5e16d8df7f7472c5)