ASoC: Intel: Skylake: Use the fw name from ACPI mach table

The firmware name is hard coded which doesnt allow to load
different platforms for various platforms so get this name from
available machine table and pass it to dsp context for loading

Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/intel/skylake/skl.h

@@ -68,6 +68,8 @@ struct skl {
 
 	struct skl_dsp_resource resource;
 	struct list_head ppl_list;
+
+	const char *fw_name;
 };
 
 #define skl_to_ebus(s)	(&(s)->ebus)