Update ca-certificates for HP Cloud centos6 images

The current HP cloud official centos6 images ("CentOS 6.3 Server
64-bit 20130116" - c1f9f404-39c2-4e83-b4bb-90d5ead16a36) by default
can't connect to mirrors.fedoraproject.org over https

---
[root@test ~]# urlgrabber -d 1,debug.txt https://mirrors.fedoraproject.org/metalink?repo=epel-6
* About to connect() to mirrors.fedoraproject.org port 443 (#0)
*   Trying 140.211.169.197... * connected
* Connected to mirrors.fedoraproject.org (140.211.169.197) port 443 (#0)
* Initializing NSS with certpath: sql:/etc/pki/nssdb
*   CAfile: /etc/pki/tls/certs/ca-bundle.crt
  CApath: none
* NSS error -8092
* Closing connection #0
* SSL connect error
---

This requires an update of ca-certificates before it will work.

Change-Id: I9c5e595aa2b8e86188cb7db658ce4b630e6d0774
Merge "Update ca-certificates for HP Cloud centos6 images"