[master]Fix show ip interface neighbor info not correct when add second ip (sonic-net#1134)

**- What I did**
Fix sonic-net#5423
**- How I did it**
store neighbor info into array for later showing.
**- How to verify it**
config interface ip add Ethernet49 xxx secondary many times
show ip interface
**- Previous command output (if the output of a command-line utility has changed)**
```
root@sonic:/home/admin# show ip interfaces
Interface        Master    IPv4 address/mask    Admin/Oper    BGP Neighbor    Neighbor IP
---------------  --------  -------------------  ------------  --------------  -------------
Ethernet49                 10.0.0.96/31         up/up         N/A             N/A
                           10.10.49.1/24
```
**- New command output (if the output of a command-line utility has changed)**
```
root@sonic:/usr/lib/python2.7/dist-packages/show# show ip interfaces
Interface    Master           IPv4 address/mask    Admin/Oper    BGP Neighbor    Neighbor IP
-----------  ---------------  -------------------  ------------  --------------  -------------
Ethernet49                    10.0.0.96/31         up/up         ARISTA21T0      10.0.0.97
                              10.10.49.1/24        up/up         N/A             N/A
```

Co-authored-by: shaoshouping <[email protected]>

Author: tim-rj

show/main.py

@@ -721,6 +721,7 @@ def interfaces():
 
         if netifaces.AF_INET in ipaddresses:
             ifaddresses = []
+            neighbor_info = []
             for ipaddr in ipaddresses[netifaces.AF_INET]:
                 neighbor_name = 'N/A'
                 neighbor_ip = 'N/A'
@@ -732,6 +733,7 @@ def interfaces():
                     neighbor_ip = bgp_peer[local_ip][1]
                 except Exception:
                     pass
+                neighbor_info.append([neighbor_name, neighbor_ip])
 
             if len(ifaddresses) > 0:
                 admin = get_if_admin_state(iface)
@@ -743,10 +745,12 @@ def interfaces():
                 if clicommon.get_interface_naming_mode() == "alias":
                     iface = iface_alias_converter.name_to_alias(iface)
 
-                data.append([iface, master, ifaddresses[0][1], admin + "/" + oper, neighbor_name, neighbor_ip])
+                data.append([iface, master, ifaddresses[0][1], admin + "/" + oper, neighbor_info[0][0], neighbor_info[0][1]])
+                neighbor_info.pop(0)
 
-            for ifaddr in ifaddresses[1:]:
-                data.append(["", "", ifaddr[1], ""])
+                for ifaddr in ifaddresses[1:]:
+                    data.append(["", "", ifaddr[1], admin + "/" + oper, neighbor_info[0][0], neighbor_info[0][1]])
+                    neighbor_info.pop(0)
 
     print(tabulate(data, header, tablefmt="simple", stralign='left', missingval=""))