[sonic-platform-daemons] Update submodule (sonic-net#6998)

* src/sonic-platform-daemons 068bccc...e5165b7 (7):
  > [xcvrd] Fix crash: If 'dom_capability' not in port_info_dict, insert 'N/A' (sonic-net#162)
  > fix the muxcable state change notification received from other modules, omit the check inside hw_state table (sonic-net#159)
  > [xcvrd] Fix crash on platforms which support media settings with Python 3 (sonic-net#158)
  > [xcvrd] Save the dom_capability of transceiver into db (sonic-net#72)
  > [xcvrd] Fix xcvrd crash on other port prefixes (sonic-net#123)
  > [xcvrd] Make functions used for media setting python3 compatible (sonic-net#153)
  > [psud] Refactor unit tests; increase unit test coverage (sonic-net#146)