Fixing permission denied issue for openstack comp. log files

Issue:
When openstack components were started we observe permission denied issue
for /var/log/<comp>/<comp>.log

Reason:
On certain supervisor ini file for openstack components we have configured
the stdout and stderr to be redirected to the same /var/log/<comp>/<comp>.log
file used by the process. Due to which the logfiles were created with root uid
where as the components were started using their own uid hence they didnt have
permission to write to the logfile

Change-Id: I6f6260fa68e9a69463293b1246281477cd2170fe
Closes-Bug: #1404789