fixes error parsing lldp neighbors when running nxos_facts (#23134)

(cherry picked from commit 2e476e6)

lib/ansible/modules/network/nxos/nxos_facts.py

@@ -320,19 +320,18 @@ def populate_neighbors(self, data):
         if data.startswith('ERROR'):
             return dict()
 
-        data = data['TABLE_nbor']['ROW_nbor']
-        if isinstance(data, dict):
-            data = [data]
+        lines = data.split('\n')
+        regex = re.compile('(\S+)\s+(\S+)\s+\d+\s+\w+\s+(\S+)')
 
         objects = dict()
-        for item in data:
-            local_intf = item['l_port_id']
-            if local_intf not in objects:
-                objects[local_intf] = list()
-            nbor = dict()
-            nbor['port'] = item['port_id']
-            nbor['host'] = item['chassis_id']
-            objects[local_intf].append(nbor)
+
+        for item in data.split('\n')[4:-1]:
+            match = regex.match(item)
+            if match:
+                nbor = {'host': match.group(1), 'port': match.group(3)}
+                if match.group(2) not in objects:
+                    objects[match.group(2)] = []
+                objects[match.group(2)].append(nbor)
         return objects
 
     def parse_ipv6_interfaces(self, data):