Upgrade libopus to v1.5 am: 15c162f466 am: 571ac43bb9 Original change: https://android-review.googlesource.com/c/platform/external/libopus/+/3001676 Change-Id: I6e20c2bfe62061a2007985974f8af196008be165 Signed-off-by: Automerger Merge Worker <[email protected]>