Merged PR 6591706: Cherry pick submodule PRs from public repo to inte…

…rnal repo.

Cherry pick 2 swss-common submodule changes:

SHA-1: c47272d

* Update sonic-swss-common submodule (sonic-net#11470)

#### Why I did it

Submodule update for sonic-swss-common with following change:

597b022 Add SonicDBConfig.getInstanceList() API (sonic-net#639)
7073dc6 add table name for vlan_stacking (sonic-net#646)
7e39f31 Add SonicV2Connector::set method for int value. (sonic-net#648)
154cc9c Improve hset and hdel performance with RedisPipeline. (sonic-net#647)

SHA-1: ba1e1a9

* [sonic-swss-common] Update sonic-swss-common submodule (sonic-net#11524)

#### Why I did it

Submodule update for sonic-swss-common with following change:
```
2247dbe 2022-08-01 | Fix memory leak issue in ConfigDBConnector. (sonic-net#655) [Hua Liu]
4af97d6 2022-07-27 | Add new table schemas for DASH (sonic-net#654) [prabhataravind]
d72e5ea 2022-07-23 | Fix epoll and socket resource leak issue. (sonic-net#651) [Hua Liu]
dda857b 2022-07-21 | Microsoft mandatory file (sonic-net#620) [microsoft-github-policy-service[bot]]
4132d14 2022-07-21 | Fix PING database command not backward compatible with python version issue. (sonic-net#650) [Hua Liu]
```