ata: sata_dwc_460ex.c: fix comment typo corrresponding

Signed-off-by: NJustin P. Mattock <justinmattock@gmail.com>
Signed-off-by: NJiri Kosina <jkosina@suse.cz>

drivers/ata/sata_dwc_460ex.c

@@ -389,7 +389,7 @@ static void sata_dwc_tf_dump(struct ata_taskfile *tf)
 /*
  * Function: get_burst_length_encode
  * arguments: datalength: length in bytes of data
- * returns value to be programmed in register corrresponding to data length
+ * returns value to be programmed in register corresponding to data length
  * This value is effectively the log(base 2) of the length
  */
 static  int get_burst_length_encode(int datalength)