This change adds mSBC codec support to bluetooth native headset backend, enabling wideband speech.
mSBC will be used by default with headsets claiming support. If it is causing problems mSBC can be disabled via module-bluetooth-discover module argument enable_msbc like this
load-module module-bluetooth-discover enable_msbc=falseNative backend and codec itself is based on original development by @jejb here https://git.kernel.org/pub/scm/linux/kernel/git/jejb/pulseaudio.git/log/?h=jejb-v12