Build snmpd with ipv6 support and enable it

[qiluo-msft]

- What I did
Fixed #2196

- How I did it

- How to verify it
Tested in DUT

admin@sonic:~/snmp$ docker exec -it snmp bash
root@sonic:/# snmpwalk -v2c -c public ::1 iso.3.6.1.2.1.4.24.4.1.1
iso.3.6.1.2.1.4.24.4.1.1.0.0.0.0.0.0.0.0.0.10.0.0.1 = IpAddress: 0.0.0.0
iso.3.6.1.2.1.4.24.4.1.1.0.0.0.0.0.0.0.0.0.10.0.0.5 = IpAddress: 0.0.0.0
iso.3.6.1.2.1.4.24.4.1.1.0.0.0.0.0.0.0.0.0.10.0.0.9 = IpAddress: 0.0.0.0
iso.3.6.1.2.1.4.24.4.1.1.0.0.0.0.0.0.0.0.0.10.0.0.13 = IpAddress: 0.0.0.0
iso.3.6.1.2.1.4.24.4.1.1.0.0.0.0.0.0.0.0.0.10.0.0.17 = IpAddress: 0.0.0.0
iso.3.6.1.2.1.4.24.4.1.1.0.0.0.0.0.0.0.0.0.10.0.0.21 = IpAddress: 0.0.0.0
iso.3.6.1.2.1.4.24.4.1.1.0.0.0.0.0.0.0.0.0.10.0.0.25 = IpAddress: 0.0.0.0
iso.3.6.1.2.1.4.24.4.1.1.0.0.0.0.0.0.0.0.0.10.0.0.29 = IpAddress: 0.0.0.0
iso.3.6.1.2.1.4.24.4.1.1.10.1.0.32.255.255.255.255.0.0.0.0.0 = IpAddress: 10.1.0.32

- Description for the changelog

- A picture of a cute animal (not mandatory but encouraged)

[kannankvs]

@qiluo-msft @lguohan : This was due to the prototype mismatch issue that originated from the net-snmp patch code https://sourceforge.net/p/net-snmp/patches/1376/ which we took as the base for our 0007 patch. The issue is corrected now and I raised the PR3504. Request you to merge the PR3504 first and then merge this PR.