Fix comment

Signed-off-by: Ze Gan <[email protected]>

Author: Pterosaur

dockers/docker-database/database_config.json.j2

@@ -4,8 +4,10 @@
             "hostname" : "{{HOST_IP}}",
             "port" : {{REDIS_PORT}},
             "unix_socket_path" : "/var/run/redis{{DEV}}/redis.sock",
-            "persistence_for_warm_boot" : "yes",
-            "database_type": "{{DATABASE_TYPE}}"
+            "persistence_for_warm_boot" : "yes"
+            {% if DATABASE_TYPE is defined and DATABASE_TYPE != "" %}
+            ,"database_type": "{{DATABASE_TYPE}}"
+            {% endif %}
         },
         "redis_chassis":{
             "hostname" : "redis_chassis.server",

src/sonic-py-common/sonic_py_common/device_info.py

@@ -847,6 +847,8 @@ def is_frontend_port_present_in_host():
 
 
 def get_num_dpus():
+    # Todo: we should use platform api to get the dpu number
+    # instead of rely on the platform env config.
     num_dpus = 0
     platform_env_conf_file_path = get_platform_env_conf_file_path()