<!--- Verify first that your issue is not already reported on GitHub -->
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##### SUMMARY
<!--- Explain the problem briefly below -->
IOSXR L3 is having idempotent issue, which is resulting into change as True even if there's no change.
https://dashboard.zuul.ansible.com/t/ansible/build/40e9d4f8d8f04e53a06f7b07849aa304
https://dashboard.zuul.ansible.com/t/ansible/build/2447ad82cf5c475c8f5c2c4546ca18f6
https://dashboard.zuul.ansible.com/t/ansible/build/52237d4c64644a1fb18e941b5da75bb8 

##### ISSUE TYPE
- Bug Report

##### COMPONENT NAME
<!--- Write the short name of the module, plugin, task or feature below, use your best guess if unsure -->
iosxr_l3_interfaces

##### ANSIBLE VERSION
<!--- Paste verbatim output from "ansible --version" between quotes -->
```paste below
2.9 and devel
```

##### CONFIGURATION
<!--- Paste verbatim output from "ansible-config dump --only-changed" between quotes -->
```paste below

```

##### OS / ENVIRONMENT
<!--- Provide all relevant information below, e.g. target OS versions, network device firmware, etc. -->
ios

##### STEPS TO REPRODUCE
<!--- Describe exactly how to reproduce the problem, using a minimal test-case -->

<!--- Paste example playbooks or commands between quotes below -->
```yaml

```

<!--- HINT: You can paste gist.github.com links for larger files -->

##### EXPECTED RESULTS
<!--- Describe what you expected to happen when running the steps above -->
On the second run of play, the run should be idempotent

##### ACTUAL RESULTS
<!--- Describe what actually happened. If possible run with extra verbosity (-vvvv) -->
On the second run of play, the run is not idempotent
<!--- Paste verbatim command output between quotes -->
```paste below

```

""" The command generator when state is overridden
        :rtype: A list
        :returns: the commands necessary to migrate the current configuration
                  to the desired configuration
        """
        commands = []
        not_in_have = set()
        in_have = set()
        for each in have:
            for interface in want:
                interface['name'] = normalize_interface(interface['name'])
                if each['name'] == interface['name']:
                    in_have.add(interface['name'])
                    break
                elif interface['name'] != each['name']:
                    not_in_have.add(interface['name'])
            else:
                
                
                interface = dict(name=each['name'])
                kwargs = {'want': interface, 'have': each}
                commands.extend(self._clear_config(**kwargs))
                continue