ASoC: SOF: loader: Use snd_sof_dsp_block_read() instead sof_block_read()

SOF core should use the IO functions via callbacks and not directly to
ensure that it remains platform independent.

Fixes: 83ee7ab1 ("ASoC: SOF: Intel: byt: Refactor fw ready / mem windows creation")
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Daniel Baluta <daniel.baluta@gmail.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@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/20210521092804.3721324-5-kai.vehmanen@linux.intel.com


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