420f583758
This is needed because libaudiohal.so can only interact with one HAL version at a time (loading only one of the libaudiohal@version.so implementations), so only the interface that matches the stock HAL version will be used. libaudiohal decides which version to use by looking through the interfaces whose variant is `default` and picking the highest versioned one, so our hal will not interfere in the process (because we use `sysbta` as our variant).
You'll need to call generate.sh in this folder to generate the Makefiles to build the Treble targets