ASoC: cs35l56: Update comment on masking of EINT20 interrupts

EINT20 contains wake-source interrupts and also interface-blocked
interrupts, which all default to unmasked after reset or wake.

The comment in cs35l56_init() only mentioned the wake interrupts.
Update the comment so it's clear that it's intentional to also
mask the *_BLOCKED interrupts.
Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20230418144309.1100721-2-rf@opensource.cirrus.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/codecs/cs35l56.c

@@ -1537,7 +1537,7 @@ int cs35l56_init(struct cs35l56_private *cs35l56)
 
 	cs35l56_patch(cs35l56->dev, cs35l56->regmap, cs35l56->rev);
 
-	/* Wake source interrupts default to unmasked, so mask them */
+	/* Wake source and *_BLOCKED interrupts default to unmasked, so mask them */
 	regmap_write(cs35l56->regmap, CS35L56_IRQ1_MASK_20, 0xffffffff);
 	regmap_update_bits(cs35l56->regmap, CS35L56_IRQ1_MASK_1,
 			   CS35L56_AMP_SHORT_ERR_EINT1_MASK,