cinder: Fix log dir permission

In order to add support to uwsgi (which is opening the log file
after dropping privileges) we need to set proper permissions
for /var/log/kolla/cinder directory

Change-Id: I46da8fad93febbc462cbe42a0d96ef7d423b8965

Author: mnasiadka

docker/cinder/cinder-base/extend_start.sh

@@ -3,6 +3,9 @@
 if [[ ! -d "/var/log/kolla/cinder" ]]; then
     mkdir -p /var/log/kolla/cinder
 fi
+if [[ $(stat -c %U:%G /var/log/kolla/cinder) != "cinder:kolla" ]]; then
+    chown -R cinder:kolla /var/log/kolla/cinder
+fi
 if [[ $(stat -c %a /var/log/kolla/cinder) != "755" ]]; then
     chmod 755 /var/log/kolla/cinder
 fi