[submodule]: Advance swss submodule

[nazariig]

Signed-off-by: Nazarii Hnydyn nazariig@nvidia.com

Pick up LAG fix:
[portsorch]: Set proper initial forwarding state for LAG member #1448

- Why I did it

• To update SWSS submodule

- How I did it

• N/A

- How to verify it

1. make configure PLATFORM=mellanox
2. make target/sonic-mellanox.bin

- Which release branch to backport (provide reason below if selected)

• 201811
• 201911
• 202006

- Description for the changelog

Commits on Oct 08, 2020
[NAT]: Clear the iptables NAT rules only which were added by NAT Mgr. (… eff5456
Commits on Oct 12, 2020
[portsorch]: Set proper initial forwarding state for LAG member (#1448) 7880c7e

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

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    / /     \(  )/    -----
   //////   ' \/ `   ---
  //// / // :    : ---
 // /   /  /`    '--
//          //..\\
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           '//||\\`
             ''``

[lguohan]

retest mellanox please

[daall]

retest mellanox please