audio policy: fix in call volume over USB

Do not consider only primary output for voice volume control as
sometimes the output device selected for a call can be connected to
another output stream (e.g USB)

Bug: 27108587
Change-Id: I8ec3db272f87d49f57044a771019672050f63d32
diff --git a/services/audiopolicy/managerdefault/AudioPolicyManager.cpp b/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
index d25dabd..0704bc8 100644
--- a/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
+++ b/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
@@ -4936,7 +4936,7 @@
             voiceVolume = 1.0;
         }
 
-        if (voiceVolume != mLastVoiceVolume && outputDesc == mPrimaryOutput) {
+        if (voiceVolume != mLastVoiceVolume) {
             mpClientInterface->setVoiceVolume(voiceVolume, delayMs);
             mLastVoiceVolume = voiceVolume;
         }