ARM: OMAP: 3430sdp: Enable extmute functionality for audio

Enable the use of extmute on the HS path.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
diff --git a/arch/arm/mach-omap2/board-3430sdp.c b/arch/arm/mach-omap2/board-3430sdp.c
index bb73afc..40c22a7 100644
--- a/arch/arm/mach-omap2/board-3430sdp.c
+++ b/arch/arm/mach-omap2/board-3430sdp.c
@@ -382,6 +382,9 @@
 	sdp3430_twldata.vpll2->constraints.apply_uV = true;
 	sdp3430_twldata.vpll2->constraints.name = "VDVI";
 
+	sdp3430_twldata.audio->codec->hs_extmute = 1;
+	sdp3430_twldata.audio->codec->hs_extmute_gpio = -EINVAL;
+
 	omap3_pmic_init("twl4030", &sdp3430_twldata);
 
 	/* i2c2 on camera connector (for sensor control) and optional isp1301 */