Merge pull request #247 in SW_PON/linux from feature/integrate-bm-qos-datapath to xrx500

PPV4 QoS integration

* commit '6c194145ceb32b6616c599792dbaffa0bf3c83f5': (75 commits)
  checkpatch warning fixing in datapath_swdev.c
  change space to tab in kconfig and remove trailing space
  Set BSL threshold when the first interface comes up using switch api
  Fix remove node command
  Added BM debugfs. Fixed code review comments
  Add entry log to qos api
  Fix pull request #247 comments
  fix qos proc bug
  tune debug info
  Omit pp_qos_platform.c
  get resources by name, not by index
  Change the sequence in deleting the interface to prevent a deadlock situation and hang
  maintain the sanity of the flags for alloc, otherwise it causes mismatch/error in the flag while deleting the interface from the bridge
  fix the param ep
  update qos proc
  cat /proc/dp/qos works without scheduler. But queue/scheduler/port stat still wrong
  Add qos debugfs documentation
  Add debug and stat API
  cqm small adjustments to compile with the lates BM changes
  BM checkpatch fixes
  ...