ASoC: wm5102: Use get_unaligned_be16() for dac_comp_coeff

Replace the two-step copy-and-convert in
wm5102_out_comp_coeff_put() with get_unaligned_be16(). Apart from
looking nicer, it avoids this sparse warning:

wm5102.c:687:35: sparse: sparse: cast to restricted __be16
Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20201015102703.24622-1-rf@opensource.cirrus.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/codecs/wm5102.c

@@ -682,9 +682,7 @@ static int wm5102_out_comp_coeff_put(struct snd_kcontrol *kcontrol,
 	struct arizona *arizona = dev_get_drvdata(component->dev->parent);
 
 	mutex_lock(&arizona->dac_comp_lock);
-	memcpy(&arizona->dac_comp_coeff, ucontrol->value.bytes.data,
-	       sizeof(arizona->dac_comp_coeff));
-	arizona->dac_comp_coeff = be16_to_cpu(arizona->dac_comp_coeff);
+	arizona->dac_comp_coeff = get_unaligned_be16(ucontrol->value.bytes.data);
 	mutex_unlock(&arizona->dac_comp_lock);
 
 	return 0;