To be usable in platform code, move the IPC and DSP dump function to
debug.c and export it in a similar way as the snd_sof_handle_fw_exception()

Make the snd_sof_ipc_dump() static as it is only used in debug.c
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20211006110645.26679-8-peter.ujfalusi@linux.intel.comSigned-off-by: Mark Brown <broonie@kernel.org>