Update sonic-swss, sonic-utilies submodules

sonic-swss:

bb69ca2 [portsorch] Avoid orchagent crash when set invalid interface types to port (#1906)
6e1bacc [pfcwd] Fix the polling interval time granularity (#1912)
564785b [teammgrd]: Improve LAGs cleanup on shutdown: send SIGTERM directly to PID. (#1841)
7ee8d26 [tlm teamd] Add retry mechanism before logging the ERR in get_dumps. (#1629)
7f57d3d [fgnhgorch] Enable packet flow when no FG ECMP neighbors are resolved (#1900)
08d009f Mux state order change (#1902)

sonic-utilities:

1bc0f07 Provide support to install platform extensions (#1578)
968c781 [config reload] Removed job-mode for sonic.target restart (#1820)