ALSA: ali5451: fix spelling mistake in "ali_capture_preapre"

trivial fix to spelling mistake in dev_warn message,
"ali_capture_preapre" should be "ali_capture_prepare"
Signed-off-by: NColin Ian King <colin.king@canonical.com>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

sound/pci/ali5451/ali5451.c

@@ -1339,7 +1339,7 @@ static int snd_ali_prepare(struct snd_pcm_substream *substream)
 		rate = snd_ali_get_spdif_in_rate(codec);
 		if (rate == 0) {
 			dev_warn(codec->card->dev,
-				 "ali_capture_preapre: spdif rate detect err!\n");
+				 "ali_capture_prepare: spdif rate detect err!\n");
 			rate = 48000;
 		}
 		spin_lock_irq(&codec->reg_lock);