ASoC: cs48l32: Use PTR_ERR_OR_ZERO() to simplify code

Use the standard error pointer macro to shorten the code and simplify.

Signed-off-by: Xichao Zhao <[e-mail]>
Link: https://patch.msgid.link/[e-mail]
Signed-off-by: Mark Brown <[e-mail]>

sound/soc/codecs/cs48l32-tables.c

···
 int cs48l32_create_regmap(struct spi_device *spi, struct cs48l32 *cs48l32)
 {
 	cs48l32->regmap = devm_regmap_init_spi(spi, &cs48l32_regmap);
-	if (IS_ERR(cs48l32->regmap))
-		return PTR_ERR(cs48l32->regmap);
 
-	return 0;
+	return PTR_ERR_OR_ZERO(cs48l32->regmap);
 }