ASoC: SOF: ipc3-loader: Implement firmware parsing and loading

ASoC: SOF: ipc3-loader: Implement firmware parsing and loading

Add the IPC3 dependent implementation of validating the firmware image,
parsing the ext manifest and to load modules via memcpy.

The code introduced by this commit is the IPC dependent code from the
loader.c, which is going to be removed later.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@intel.com>
Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Link: https://lore.kernel.org/r/20220425221129.124615-3-ranjani.sridharan@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>