[automerger] Init gain config to prevent uninit leak. am: ebe0777edc am: 1f39e79a73 am: f57d4e10ef

Change-Id: I725f65349dd127eaf689a71eead1eb9a06c059bd
diff --git a/services/audiopolicy/common/managerdefinitions/src/AudioPort.cpp b/services/audiopolicy/common/managerdefinitions/src/AudioPort.cpp
index 4e24f19..169a599 100644
--- a/services/audiopolicy/common/managerdefinitions/src/AudioPort.cpp
+++ b/services/audiopolicy/common/managerdefinitions/src/AudioPort.cpp
@@ -827,6 +827,7 @@
     mSamplingRate = 0;
     mChannelMask = AUDIO_CHANNEL_NONE;
     mFormat = AUDIO_FORMAT_INVALID;
+    memset(&mGain, 0, sizeof(struct audio_gain_config));
     mGain.index = -1;
 }