Bump required version of pyOpenSSL
Bump required version of pyOpenSSL

cryptography-2.0 has been released and requires
version >=1.6.2 of pyOpenSSL. This patch changed
required version of pyOpenSSL to be >= 1.6.2. Given
that we are not capping the version of cryptography
i think we shouldn't cap pyOpenSSL.

Change-Id: I044f6d74d64899eaf9edc3a3931825c5a5d6e84f

stackforge/packstack,openstack/packstack,fr34k8/packstack,fr34k8/packstack,fr34k8/packstack,mahak/packstack,openstack/packstack,openstack/packstack,stackforge/packstack,mahak/packstack,stackforge/packstack,mahak/packstack