Merge pull request #273 in SW_PON/linux from bugfix/UGW_SW-23348-kernel-dump-observed-while-executing-cdr-and-nbt to xrx500

* commit 'd160d55eb68343cc92cd3e84e7c85ebd49ba7bd4':
  spi: ltq_ssc - fix ifx_validate_params()
  spi: ltq_ssc - Remove dump_stack call