aaudio: fix ramp for volume smoothing

It was using numSamples instead of numFrames.
So timing was off.

Bug: 68804159
Test: raise and lower volume without clicking
Test: test_linear_ramp.cpp
Change-Id: I18b10dadbc47ab9cbe9c5aefd4e6197c50a0bedc
diff --git a/media/libaaudio/src/client/AudioStreamInternalPlay.cpp b/media/libaaudio/src/client/AudioStreamInternalPlay.cpp
index 1cf2c72..8d7a01e 100644
--- a/media/libaaudio/src/client/AudioStreamInternalPlay.cpp
+++ b/media/libaaudio/src/client/AudioStreamInternalPlay.cpp
@@ -219,8 +219,7 @@
             // Data conversion.
             float levelFrom;
             float levelTo;
-            bool ramping = mVolumeRamp.nextSegment(framesToWrite * getSamplesPerFrame(),
-                                                   &levelFrom, &levelTo);
+            bool ramping = mVolumeRamp.nextSegment(framesToWrite, &levelFrom, &levelTo);
             // The formats are validated when the stream is opened so we do not have to
             // check for illegal combinations here.
             // TODO factor this out into a utility function