Disable log debug in keystone.conf.

Change-Id: Iac1891ed5eb4a691a9a92130aaa032b0e66e0f25
Disable debug in cinder.conf.

Change-Id: If37c7ac2dabb6202f2e78f7721076e31f38c8c93
Merge "Disable log debug in keystone.conf."
Merge "Disable debug in cinder.conf."