Increased keystone token expiration time to 24h

Long lived token will allow to use it in OSTF tests and in
long running upgrade where 1h token might not be sufficient.
Such token will also improve user experience when we switch
to storing token instead of storing user credentials.

Change-Id: I81ba5c11034fca8a332ec2e92f1f9804523e14f6
Implements: blueprint access-control-master-node-improvments
Merge "Increased keystone token expiration time to 24h"