asoc: wcd937x: use swr device wakeup api

Use device wakeup api exposed by soundwire to
vote and unvote for soundwire master for mbhc
operations.

Change-Id: Id83c8d3fb2eb351133790f69af56e4981bcac543
Signed-off-by: Ramprasad Katkam <katkam@codeaurora.org>

asoc/codecs/wcd937x/wcd937x-mbhc.c

@@ -240,6 +240,10 @@ static void wcd937x_mbhc_program_btn_thr(struct snd_soc_component *component,
 
 static bool wcd937x_mbhc_lock_sleep(struct wcd_mbhc *mbhc, bool lock)
 {
+	struct snd_soc_component *component = mbhc->component;
+	struct wcd937x_priv *wcd937x = dev_get_drvdata(component->dev);
+
+	wcd937x->wakeup((void*)wcd937x, lock);
 	return true;
 }