##### SUMMARY
This feature would implement a SetManagerNic command for the Manager category of redfish_config, to update Manager NIC configuration. 

##### ISSUE TYPE
- Feature Idea

##### COMPONENT NAME
redfish_config

##### ADDITIONAL INFORMATION
This command would help user to configure their Manager NIC.
result = {}
        health = {}
        status = 'Status'
        
        response = self.get_request(self.root_uri + uri)
        if response['ret'] is False:
            return response
        result['ret'] = True
        data = response['data']
        health[category] = {status: data.get(status, "Status not available")}
        
        for sub in subsystems:
            d = None
            if sub.startswith('Links.'):  
                sub = sub[len('Links.'):]
                d = data.get('Links', {})
            elif '.' in sub:  
                p, sub = sub.split('.')
                u = data.get(p, {}).get('@odata.id')
                if u:
                    r = self.get_request(self.root_uri + u)
                    if r['ret']: