configs: add voice speaker protected path

To add support for speaker protection during voice call, add
"voice-speaker-protected" path.

Change-Id: Ibc37ffd90cca3f6cc766c3d2f917fdc442069702
diff --git a/configs/msm8953/mixer_paths_mtp.xml b/configs/msm8953/mixer_paths_mtp.xml
index d618169..3190d1a 100644
--- a/configs/msm8953/mixer_paths_mtp.xml
+++ b/configs/msm8953/mixer_paths_mtp.xml
@@ -1027,6 +1027,11 @@
         <ctl name="SpkrMono VISENSE Switch" value="1" />
     </path>
 
+
+    <path name="voice-speaker-protected">
+        <path name="speaker-protected" />
+    </path>
+
    <path name="speaker-mic">
         <path name="adc1" />
         <ctl name="IIR1 INP1 MUX" value="DEC1" />