Update our in-tree implementation of the opus audio codec
to the 1.2 release candidiate. This gives us some wider
testing before making the first stable release of the
new series.
This release improves the quality and compactness of encoded
audio, and optimizes performance on ARM NEON platforms.
MozReview-Commit-ID: 30bM6iVBamd
--HG--
extra : rebase_source : 7a679a4ea419dbfb242aeebf220518e2f9397977
