[chassis][supervisor] snmpwalk failed on supervisor card

[mlok-nokia]

Description
On VOQ chassis supervisor card, snmpwalk failed to walk the mib from top. The following is failure output

cmd:  snmpwalk -v  2c -c public  152.148.151.221
SNMPv2-MIB::sysDescr.0 = STRING: SONiC Software Version: SONiC.HEAD.213232-dirty-20220120.095956 - HwSku: Nokia-IXR7250E-SUP-10-r0 - Distribution: Debian 11.2 - Kernel: 5.10.0-8-2-amd64
SNMPv2-MIB::sysObjectID.0 = OID: NET-SNMP-MIB::netSnmpAgentOIDs.10
DISMAN-EVENT-MIB::sysUpTimeInstance = Timeticks: (5759739) 15:59:57.39
SNMPv2-MIB::sysContact.0 = STRING: Azure Cloud Switch vteam <linuxnetdev@microsoft.com>
Timeout: No Response from 152.148.151.221

Also the following output is shown on the the supervisor card syslog:

Jan 21 16:42:53.631232 supervisor ERR snmp#snmp-subagent [ax_interface] ERROR: MIBUpdater.start() caught an unexpected exception during update_data()#012Traceback (most recent call last):#012  File "/usr/local/lib/python3.7/dist-packages/ax_interface/mib.py", line 37, in start#012    self.reinit_data()#012  File "/usr/local/lib/python3.7/dist-packages/sonic_ax_impl/mibs/ietf/rfc2863.py", line 128, in reinit_data#012    self.vlan_oid_name_map = Namespace.get_sync_d_from_all_namespace(mibs.init_sync_d_vlan_tables, self.db_conn)#012  File "/usr/local/lib/python3.7/dist-packages/sonic_ax_impl/mibs/__init__.py", line 651, in get_sync_d_from_all_namespace#012    ns_tuple = per_namespace_func(db_conn)#012  File "/usr/local/lib/python3.7/dist-packages/sonic_ax_impl/mibs/__init__.py", line 341, in init_sync_d_vlan_tables#012    vlan_name_map = port_util.get_vlan_interface_oid_map(db_conn)#012  File "/usr/local/lib/python3.7/dist-packages/swsssdk/port_util.py", line 167, in get_vlan_interface_oid_map#012    rif_name_map = db.get_all('COUNTERS_DB', 'COUNTERS_RIF_NAME_MAP', blocking=True)#012  File "/usr/lib/python3/dist-packages/swsscommon/swsscommon.py", line 1751, in get_all#012    return dict(super(SonicV2Connector, self).get_all(db_name, _hash, blocking))#012  File "/usr/lib/python3/dist-packages/swsscommon/swsscommon.py", line 1708, in get_all#012    return _swsscommon.SonicV2Connector_Native_get_all(self, db_name, _hash, blocking)#012RuntimeError: Key '{COUNTERS_RIF_NAME_MAP}' unavailable in database '{COUNTERS_DB}'

Steps to reproduce the issue:

1. Using the snmpwalk command to query a supervisor card: snmpwakl -v 2c -c public
   The following output will be shown:

SNMPv2-MIB::sysObjectID.0 = OID: NET-SNMP-MIB::netSnmpAgentOIDs.10
DISMAN-EVENT-MIB::sysUpTimeInstance = Timeticks: (5759739) 15:59:57.39
SNMPv2-MIB::sysContact.0 = STRING: Azure Cloud Switch vteam <linuxnetdev@microsoft.com>
Timeout: No Response from 152.148.151.221

or
2. Also check the syslog file on supervisor card, the following backtrace is shown:

Jan 21 16:42:53.631232 supervisor ERR snmp#snmp-subagent [ax_interface] ERROR: MIBUpdater.start() caught an unexpected exception during update_data()#012Traceback (most recent call last):#012  File "/usr/local/lib/python3.7/dist-packages/ax_interface/mib.py", line 37, in start#012    self.reinit_data()#012  File "/usr/local/lib/python3.7/dist-packages/sonic_ax_impl/mibs/ietf/rfc2863.py", line 128, in reinit_data#012    self.vlan_oid_name_map = Namespace.get_sync_d_from_all_namespace(mibs.init_sync_d_vlan_tables, self.db_conn)#012  File "/usr/local/lib/python3.7/dist-packages/sonic_ax_impl/mibs/__init__.py", line 651, in get_sync_d_from_all_namespace#012    ns_tuple = per_namespace_func(db_conn)#012  File "/usr/local/lib/python3.7/dist-packages/sonic_ax_impl/mibs/__init__.py", line 341, in init_sync_d_vlan_tables#012    vlan_name_map = port_util.get_vlan_interface_oid_map(db_conn)#012  File "/usr/local/lib/python3.7/dist-packages/swsssdk/port_util.py", line 167, in get_vlan_interface_oid_map#012    rif_name_map = db.get_all('COUNTERS_DB', 'COUNTERS_RIF_NAME_MAP', blocking=True)#012  File "/usr/lib/python3/dist-packages/swsscommon/swsscommon.py", line 1751, in get_all#012    return dict(super(SonicV2Connector, self).get_all(db_name, _hash, blocking))#012  File "/usr/lib/python3/dist-packages/swsscommon/swsscommon.py", line 1708, in get_all#012    return _swsscommon.SonicV2Connector_Native_get_all(self, db_name, _hash, blocking)#012RuntimeError: Key '{COUNTERS_RIF_NAME_MAP}' unavailable in database '{COUNTERS_DB}'

Describe the results you received:
snmpwalk failed to query the supervisor card.

SNMPv2-MIB::sysObjectID.0 = OID: NET-SNMP-MIB::netSnmpAgentOIDs.10
DISMAN-EVENT-MIB::sysUpTimeInstance = Timeticks: (5759739) 15:59:57.39
SNMPv2-MIB::sysContact.0 = STRING: Azure Cloud Switch vteam <linuxnetdev@microsoft.com>
Timeout: No Response from 152.148.151.221

Describe the results you expected:
MIB walk should work fine. And backtrace should no the seen in syslog file

Additional information you deem important (e.g. issue happens only occasionally):

**Output of `show version`:**

```
(paste your output here)
```

**Attach debug file `sudo generate_dump`:**

```
(paste your output here)
```