ASoC: rt5645: extend delay time for headphone pop noise

Headphone needs enough delay time before unmuting for avoiding pop sound.
We extend the delay time to make sure headphone doesn't pop.
Signed-off-by: John Lin <john.lin@realtek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/codecs/rt5645.c

@@ -1674,7 +1674,7 @@ static void hp_amp_power(struct snd_soc_codec *codec, int on)
 				regmap_write(rt5645->regmap, RT5645_PR_BASE +
 					RT5645_MAMP_INT_REG2, 0xfc00);
 				snd_soc_write(codec, RT5645_DEPOP_M2, 0x1140);
-				msleep(70);
+				msleep(90);
 				rt5645->hp_on = true;
 			} else {
 				/* depop parameters */