ASoC: mediatek: btcvsd: fix spelling mistake "offest" -> "offset"

There is a spelling mistake in a dev_warn message. Fix this.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/mediatek/common/mtk-btcvsd.c

@@ -1309,7 +1309,7 @@ static int mtk_btcvsd_snd_probe(struct platform_device *pdev)
 					 offset,
 					 ARRAY_SIZE(offset));
 	if (ret) {
-		dev_warn(dev, "%s(), get offest fail, ret %d\n", __func__, ret);
+		dev_warn(dev, "%s(), get offset fail, ret %d\n", __func__, ret);
 		return ret;
 	}
 	btcvsd->infra_misc_offset = offset[0];