sonivox: Fix global buffer overflow in WT_InterpolateNoLoop am: 8bfcd9c03a am: 471c3bc380 am: 393f0fee8a

Original change: https://googleplex-android-review.googlesource.com/c/platform/external/sonivox/+/15249031

Change-Id: I7ed783f7a8e542652b7fca33dd3e9f384f2fa312