additional log file permissions

Author: pbokeefe1027

files/ssm.conf

@@ -5,3 +5,6 @@ d /var/log/amazon/ssm 0740 - - -
 f /var/log/amazon/ssm/amazon-ssm-agent.log 640 - - -
 f /var/log/amazon/ssm/AmazonSSMAgent-update.txt 640 - - -
 f /var/log/amazon/ssm/errors.log 640 - - -
+f /var/log/amazon/amazon-cloudwatch-agent/state/_var_log_secure 640 - - -
+f /var/log/lastlog 640 - - -
+f /var/log/btmp 640 - - -