Adds, removes and modifies includes in all LE audio
files.
Fixes any found spelling mistakes as well.
Fixes a few places where incorrect types were used.
Signed-off-by: Emil Gydesen <emil.gydesen@nordicsemi.no>
Move all audio related shell implementations to the
audio directory, to use the same structure as Mesh.
Signed-off-by: Emil Gydesen <emil.gydesen@nordicsemi.no>