ASoC: cs42l42: Fix comment typo in cs42l42_slow_start_put()

Fix "much change together" to "must change together".

It's probably obvious what was meant but it's nice to fix it.
Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20220817122347.1356773-5-rf@opensource.cirrus.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/codecs/cs42l42.c

@@ -403,7 +403,7 @@ static int cs42l42_slow_start_put(struct snd_kcontrol *kcontrol,
 	struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
 	u8 val;
 
-	/* all bits of SLOW_START_EN much change together */
+	/* all bits of SLOW_START_EN must change together */
 	switch (ucontrol->value.integer.value[0]) {
 	case 0:
 		val = 0;