[SWSS] Static LAG Support Changes rebase to master

[skannan-sonic]

What I did
Static lag support changes in SWSS module
sonic-net/SONiC#1039

Why I did it
Static LAG feature will be needed in case of PXE environment and where peer end device doesnt support LACP protocol

How I verified it

UT:-
        Test cases
1       Create static port channel with static flag     pass    pass
2       verify static has option flag true or false     pass    pass
3       Add static member see the portchannel is up     pass    pass
4       verify teamd is created with round-robin option by default
pass    pass
5       Remove last portchannel member check port channel down  pass
pass
6       Remove portchannel member check port channel still up   pass
pass
7       verify teamdctl config dump     pass    pass
8       verify teamdctl state dump      pass    pass
9       shutdown the portchannel check the kernel state pass    pass
10      no shutdown the portchannel check the kernel state      pass
pass
11      "Check the show output matches the review comment
root@sonic:~# show inter port
Flags: A - active, I - inactive, Up - up, Dw - Down, N/A - not
available,
       S - selected, D - deselected, * - not synced
  No.  Team Dev       Protocol     Ports
-----  -------------  -----------
-----------------------------------------
   01  PortChannel01  LACP(A)(Up)  Ethernet16(S)
   02  PortChannel02  NONE(A)(Up)  Ethernet48(S) Ethernet64(S)
Ethernet32(S)
root@sonic:~#
12      teamnl is set to roundrobin     pass    pass
13      save and reload and verify portchannel is up    pass    pass
14      "docker restart teamd
teamd stopped
swss stopped
syncd stopped

swss started
syncd started
teamd started"  pass    pass
15      warm-reboot fails even without any port channel config  fail
16      verify teamd settles doesnt hog cpu with 100% cpu usage pass
17      "trying with static port channel config on non supported
branches
port channel will be configured as LACP."               pass

Not Supported Options
1. Min links and
2. fall back are not supported

Details if related
Patch explanation
1. static lag supported with option roundrobin.
2. tlm_teamd -> teamdctl changes to handle json dump for static lag.
3. test cases -> updated

[linux-foundation-easycla]

• ❌ The email address for the commit (3b43772) is not linked to the GitHub account, preventing the EasyCLA check. Consult this Help Article and GitHub Help to resolve. (To view the commit's email address, add .patch at the end of this PR page's URL.) For further assistance with EasyCLA, please submit a support request ticket.

[skannan-sonic]

Easy CLA issue