Fix comment that points to config-file generator.

files/image_config/cli_sessions/sysrq-sysctl.conf.j2

@@ -1,6 +1,6 @@
 ###############################################################################
 # This file was AUTOMATICALLY GENERATED. DO NOT MODIFY.
-# Controlled by cli-sesisons.sh
+# Controlled by serial-config.sh
 ###############################################################################
 {% set sysrq = 0 %}
 {% set serial_policies = (SERIAL_CONSOLE | d({})).get('POLICIES', {}) -%}