Fix smart switch check command in gnmi and orchagent start script. (s…

…onic-net#18663)

Fix smart switch check command in gnmi and orchagent start script.

#### Why I did it
Smart switch check command in gnmi and orchagent start script check wrong Redis table.

#### How I did it
Change smart switch check command check "DEVICE_METADATA|localhost" table.

#### How to verify it
Pass all UT & E2E test

dockers/docker-orchagent/orchagent.sh

@@ -73,9 +73,19 @@ else
 fi
 
 # Enable ZMQ for SmartSwitch
-LOCALHOST_SUBTYPE=`sonic-db-cli CONFIG_DB hget localhost "subtype"`
+LOCALHOST_SUBTYPE=`sonic-db-cli CONFIG_DB hget "DEVICE_METADATA|localhost" "subtype"`
 if [[ x"${LOCALHOST_SUBTYPE}" == x"SmartSwitch" ]]; then
-    ORCHAGENT_ARGS+=" -q tcp://127.0.0.1:8100"
+    midplane_mgmt_ip=$( ip -json -4 addr show eth0-midplane | jq -r ".[0].addr_info[0].local" )
+    mgmt_ip=$( ip -json -4 addr show eth0 | jq -r ".[0].addr_info[0].local" )
+    if [[ $midplane_ip != "" ]]; then
+        # Enable ZMQ with eth0-midplane address
+        ORCHAGENT_ARGS+=" -q tcp://${midplane_mgmt_ip}:8100"
+    elif [[ $mgmt_ip != "" ]]; then
+        # If eth0-midplane interface does not exist, enable ZMQ with eth0 address
+        ORCHAGENT_ARGS+=" -q tcp://${mgmt_ip}:8100"
+    else
+        ORCHAGENT_ARGS+=" -q tcp://127.0.0.1:8100"
+    fi
 fi
 
 exec /usr/bin/orchagent ${ORCHAGENT_ARGS}

dockers/docker-sonic-gnmi/gnmi-native.sh

@@ -71,9 +71,9 @@ else
 fi
 
 # Enable ZMQ for SmartSwitch
-LOCALHOST_SUBTYPE=`sonic-db-cli CONFIG_DB hget localhost "subtype"`
+LOCALHOST_SUBTYPE=`sonic-db-cli CONFIG_DB hget "DEVICE_METADATA|localhost" "subtype"`
 if [[ x"${LOCALHOST_SUBTYPE}" == x"SmartSwitch" ]]; then
-    TELEMETRY_ARGS+=" -zmq_address=tcp://127.0.0.1:8100"
+    TELEMETRY_ARGS+=" -zmq_port=8100"
 fi
 
 # Server will handle threshold connections consecutively