configs: atoll: Update Tx volume for VoIP use cases

Update decimator volume for VoIP record use case in order
to fix CTS issues in Audio AEC use cases.

Change-Id: Ic77ba882f475b8efbf0279d2e3ca9c80eb992349
diff --git a/configs/atoll/mixer_paths.xml b/configs/atoll/mixer_paths.xml
index c886359..07253e7 100644
--- a/configs/atoll/mixer_paths.xml
+++ b/configs/atoll/mixer_paths.xml
@@ -2515,6 +2515,7 @@
     <!-- VoIP Tx settings -->
     <path name="audio-record-voip">
         <ctl name="MultiMedia10 Mixer TX_CDC_DMA_TX_3" value="1" />
+        <ctl name="TX_DEC2 Volume" value="84" />
     </path>
 
     <path name="audio-record-voip usb-headset-mic">
diff --git a/configs/atoll/mixer_paths_wcd937x.xml b/configs/atoll/mixer_paths_wcd937x.xml
index 813ecc7..689c0a3 100644
--- a/configs/atoll/mixer_paths_wcd937x.xml
+++ b/configs/atoll/mixer_paths_wcd937x.xml
@@ -2516,6 +2516,7 @@
     <!-- VoIP Tx settings -->
     <path name="audio-record-voip">
         <ctl name="MultiMedia10 Mixer TX_CDC_DMA_TX_3" value="1" />
+        <ctl name="TX_DEC2 Volume" value="84" />
     </path>
 
     <path name="audio-record-voip usb-headset-mic">