Revise speaker volume curve for media on devices with speaker DRC

Bug 15318604

Change-Id: I14b451e2d8d4439fe286dd98c45d09b9dadbb4f6
diff --git a/services/audiopolicy/AudioPolicyManager.cpp b/services/audiopolicy/AudioPolicyManager.cpp
index 95179b7..ec039aa 100644
--- a/services/audiopolicy/AudioPolicyManager.cpp
+++ b/services/audiopolicy/AudioPolicyManager.cpp
@@ -4104,7 +4104,7 @@
 
 const AudioPolicyManager::VolumeCurvePoint
     AudioPolicyManager::sSpeakerMediaVolumeCurveDrc[AudioPolicyManager::VOLCNT] = {
-    {1, -56.0f}, {20, -34.0f}, {86, -10.0f}, {100, 0.0f}
+    {1, -55.0f}, {20, -43.0f}, {86, -12.0f}, {100, 0.0f}
 };
 
 const AudioPolicyManager::VolumeCurvePoint