Add logging level configuration for registry service (#3669)

Add logging level configuration for registry service

kubernetes/helm_charts/sunbird-RC/registry/values.j2

@@ -56,6 +56,7 @@ rccoreenv:
   KAFKA_LISTENER_SECURITY_PROTOCOL_MAP:  {{ registry_listener_security_protocol_map|default('INTERNAL:PLAINTEXT,OUTSIDE:PLAINTEXT')}}
   KAFKA_INTER_BROKER_LISTENER_NAME:  {{ registry_inter_broker_listener_name|default('INTERNAL')}}
   KAFKA_OFFSETS_TOPIC_REPLICATION_FACTOR:  {{ registry_offsets_topic_replication_factor|default('1')}}
+  logging.level.root : {{ registry_logging_level|default('INFO')}}
 
 {# The below should get enabled once the service has probes implemented #}
 {# {{ registry_liveness_readiness | to_nice_yaml }} #}