[qos]: modify dot1p to tc mapping (sonic-net#7661)

Map priority 0 to TC 1 and priority 1 to TC 0

Send traffic on priority 0 and 1 and verified that it gets mapped correctly in hw

Signed-off-by: Neetha John <[email protected]>

Author: neethajohn

files/build_templates/qos_config.j2

@@ -76,8 +76,8 @@
 {% if 'type' in DEVICE_METADATA['localhost'] and DEVICE_METADATA['localhost']['type'] in backend_device_types and 'storage_device' in DEVICE_METADATA['localhost'] and DEVICE_METADATA['localhost']['storage_device'] == 'true' %}
     "DOT1P_TO_TC_MAP": {
         "AZURE": {
-            "0": "0",
-            "1": "1",
+            "0": "1",
+            "1": "0",
             "2": "2",
             "3": "3",
             "4": "4",