staging: intel_sst: fix comment typo

Signed-off-by: NLu Guanqun <guanqun.lu@intel.com>
Cc: Vinod Koul <vinod.koul@intel.com>
Acked-by: NVinod Koul <vinod.koul@intel.com>
Acked-by: NLiam Girdwood <lrg@ti.com>
Acked-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

drivers/staging/intel_sst/intel_sst_dsp.c

@@ -104,7 +104,7 @@ static int sst_start_mrst(void)
 /**
  * sst_start_medfield - Start the SST DSP processor
  *
- * This starts the DSP in MRST platfroms
+ * This starts the DSP in Medfield platfroms
  */
 static int sst_start_medfield(void)
 {