ALSA: compress: fix some typos

Found few typos while looking at code, so fix them
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

sound/core/compress_offload.c

@@ -69,10 +69,10 @@ struct snd_compr_file {
 
 /*
  * a note on stream states used:
- * we use follwing states in the compressed core
+ * we use following states in the compressed core
  * SNDRV_PCM_STATE_OPEN: When stream has been opened.
  * SNDRV_PCM_STATE_SETUP: When stream has been initialized. This is done by
- *	calling SNDRV_COMPRESS_SET_PARAMS. running streams will come to this
+ *	calling SNDRV_COMPRESS_SET_PARAMS. Running streams will come to this
  *	state at stop by calling SNDRV_COMPRESS_STOP, or at end of drain.
  * SNDRV_PCM_STATE_PREPARED: When a stream has been written to (for
  *	playback only). User after setting up stream writes the data buffer