Add configuration optimization to run SONiC on DPU (#18807)

- Why I did it
The Appliance DPU supports a limited subset of the configuration defined in the SONiC DASH HLD.
Configure SWSS and GMNI to communicate on the Appliance DPU.
Add a sample configuration for the appliance topology.

- How I did it
Disable configuration unsupported by the Appliance DPU based on the device type.

- How to verify it
Run VNET-to-VNET sonic-mgmt test.

dockers/docker-orchagent/ipinip.json.j2

@@ -1,3 +1,6 @@
+{% if DEVICE_METADATA['localhost']['switch_type'] == "dpu" %}
+[]
+{% else %}
 {% set ipv4_addresses = [] %}
 {% set ipv6_addresses = [] %}
 {% set ipv4_loopback_addresses = [] %}
@@ -77,3 +80,5 @@
     }
 {% endif %}
 ]
+{% endif %}
+

dockers/docker-orchagent/switch.json.j2

@@ -18,13 +18,15 @@
 [
     {
         "SWITCH_TABLE:switch": {
+{% if not DEVICE_METADATA.localhost.switch_type or DEVICE_METADATA.localhost.switch_type != "dpu" %}
             "ecmp_hash_seed": "{{ hash_seed_value }}",
             "lag_hash_seed": "{{ hash_seed_value }}",
             "fdb_aging_time": "600",
 {% if DEVICE_METADATA.localhost.type and "LeafRouter" in DEVICE_METADATA.localhost.type %}
             "ordered_ecmp": "true"
 {% else %}
             "ordered_ecmp": "false"
+{% endif %}
 {% endif %}
         },
         "OP": "SET"

dockers/docker-platform-monitor/docker_init.j2

@@ -91,6 +91,10 @@ if [ -e $SENSORS_CONF_PATH_GETTER ]; then
 fi
 {% endif %}
 
+{% if CONFIGURED_PLATFORM == "nvidia-bluefield" %}
+    mount -t debugfs none /sys/kernel/debug
+{% endif %}
+
 if [ -e $SENSORS_CONF_FILE ]; then
     HAVE_SENSORS_CONF=1
     mkdir -p /etc/sensors.d