Refactors cinder controller setup section in osbash

This patch changes the sequence of some operations
in the setup_setup_cinder_controller script, tweaks echo
statements to match install-guides and adds links to the
section in install-guides.

Change-Id: I32797013fb2eec041b7abcd672d7ef2c651c98f7
Merge "Refactors cinder controller setup section in osbash"