[202012][swss] advance swss submodule head (#9920)

How I did it
Advance swss submodule head to include:

c3fb52b 2022-02-04 | Fix for missing lossless PG profile on certain ports (sonic-swss-common update for Vnet tables #2133) (HEAD -> 202012, github/202012) [Ying Xie]

Signed-off-by: Ying Xie ying.xie@microsoft.com