[swss]: Submodule update:

Include following commits:
    - d061e27 [tunnelmgrd]: Warm boot support (sonic-net#2166)
    - 73ced6e Remove port serdes object before removing port (sonic-net#2152)
    - 6ac0b9b [CoPP] Add always_enabled field to coppmgr logic (sonic-net#2034) (sonic-net#2147)

Signed-off-by: Lawrence Lee <[email protected]>

Author: theasianpianist