sonivox: Fix global buffer overflow in WT_InterpolateNoLoop am: 8bfcd9c03a am: 471c3bc380 am: 393f0fee8a am: 3310782787 am: bb6bb3aba8 am: 7f5ca1faec am: 8014baa634 am: eb1107a915 am: e6ca1d9b96 am: 15be417314

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

Change-Id: Ib2482d85b1a86bd098deca473461f6cb09c05ee1