Use new channel count functions for audio masks

Change-Id: Ia658ab4b6320d19fdb50f123c930918724ff0ef3
Signed-off-by: Andy Hung <hunga@google.com>
diff --git a/media/libeffects/visualizer/EffectVisualizer.cpp b/media/libeffects/visualizer/EffectVisualizer.cpp
index 47cab62..e5089da 100644
--- a/media/libeffects/visualizer/EffectVisualizer.cpp
+++ b/media/libeffects/visualizer/EffectVisualizer.cpp
@@ -207,7 +207,8 @@
     pContext->mScalingMode = VISUALIZER_SCALING_MODE_NORMALIZED;
 
     // measurement initialization
-    pContext->mChannelCount = popcount(pContext->mConfig.inputCfg.channels);
+    pContext->mChannelCount =
+            audio_channel_count_from_out_mask(pContext->mConfig.inputCfg.channels);
     pContext->mMeasurementMode = MEASUREMENT_MODE_NONE;
     pContext->mMeasurementWindowSizeInBuffers = MEASUREMENT_WINDOW_MAX_SIZE_IN_BUFFERS;
     pContext->mMeasurementBufferIdx = 0;