ASoC: wm_hubs: Add missing break in hp_supply_event()

Spotted by coverity CID 115170.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
Cc: stable@vger.kernel.org

sound/soc/codecs/wm_hubs.c

@@ -530,6 +530,7 @@ static int hp_supply_event(struct snd_soc_dapm_widget *w,
 				hubs->hp_startup_mode);
 			break;
 		}
+		break;
 
 	case SND_SOC_DAPM_PRE_PMD:
 		snd_soc_update_bits(codec, WM8993_CHARGE_PUMP_1,