[counterpoll]Fixing counterpoll show for tunnel and acl stats (sonic-net#2355)

- What I did
Fixing counterpoll show for tunnel and acl stats.

- How I did it
Corrected the copy paste errors.

- How to verify it
Updated test config and UT to verify it.

Author: dgsudharsan

counterpoll/main.py

@@ -419,9 +419,9 @@ def show():
     if buffer_pool_wm_info:
         data.append(["BUFFER_POOL_WATERMARK_STAT", buffer_pool_wm_info.get("POLL_INTERVAL", DEFLT_60_SEC), buffer_pool_wm_info.get("FLEX_COUNTER_STATUS", DISABLE)])
     if acl_info:
-        data.append([ACL, pg_drop_info.get("POLL_INTERVAL", DEFLT_10_SEC), acl_info.get("FLEX_COUNTER_STATUS", DISABLE)])
+        data.append([ACL, acl_info.get("POLL_INTERVAL", DEFLT_10_SEC), acl_info.get("FLEX_COUNTER_STATUS", DISABLE)])
     if tunnel_info:
-        data.append(["TUNNEL_STAT", rif_info.get("POLL_INTERVAL", DEFLT_10_SEC), rif_info.get("FLEX_COUNTER_STATUS", DISABLE)])
+        data.append(["TUNNEL_STAT", tunnel_info.get("POLL_INTERVAL", DEFLT_10_SEC), tunnel_info.get("FLEX_COUNTER_STATUS", DISABLE)])
     if trap_info:
         data.append(["FLOW_CNT_TRAP_STAT", trap_info.get("POLL_INTERVAL", DEFLT_10_SEC), trap_info.get("FLEX_COUNTER_STATUS", DISABLE)])
     if route_info:

tests/counterpoll_test.py

@@ -25,7 +25,8 @@
 QUEUE_WATERMARK_STAT  default (60000)     enable
 PG_WATERMARK_STAT     default (60000)     enable
 PG_DROP_STAT          10000               enable
-ACL                   10000               enable
+ACL                   5000                enable
+TUNNEL_STAT           3000                enable
 FLOW_CNT_TRAP_STAT    10000               enable
 FLOW_CNT_ROUTE_STAT   10000               enable
 """

tests/mock_tables/config_db.json

@@ -1664,7 +1664,11 @@
         "FLEX_COUNTER_STATUS": "enable"
     },
     "FLEX_COUNTER_TABLE|ACL": {
-        "POLL_INTERVAL": "10000",
+        "POLL_INTERVAL": "5000",
+        "FLEX_COUNTER_STATUS": "enable"
+    },
+    "FLEX_COUNTER_TABLE|TUNNEL": {
+        "POLL_INTERVAL": "3000",
         "FLEX_COUNTER_STATUS": "enable"
     },
     "FLEX_COUNTER_TABLE|FLOW_CNT_TRAP": {