ASoC: SOF: Add `src_hash` to `sof_ipc_fw_version` structure

This field will be used to compare ldc file with loaded fw version,
to assert validity of trace logs. Value used in sof-logger.

Signed-off-by: Karol Trzcinski <karolx.trzcinski@linux.intel.com>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Link: https://lore.kernel.org/r/20200917105633.2579047-3-kai.vehmanen@linux.intel.com


Signed-off-by: Mark Brown <broonie@kernel.org>