sonivox: Fix global buffer overflow in WT_Interpolate

Bug: 194533433

Test: atest CtsMidiTestCases
      atest CtsNativeMidiTestCases
      android.media.cts.MidiSoloTest
      android.media.cts.MediaPlayerTest
      android.mediav2.cts.ExtractorTest
      android.media.cts.MediaExtractorTest
      atest SonivoxTest -- --enable-module-dynamic-download=true

Change-Id: I22c19a1367ff00e6b7db6059b6422786eb75010a
(cherry picked from commit d0dbf5bd37932a53697fb0d693939420d3d28165)
1 file changed