Talk: Unify hwcodec and swcodec handling.

Do it the hwcodec way which doesn't need a buffer_alloc(). The buffer for the
.talk files is now allocated together with the voicefile buffer.

Should also fix a panic when the .talk file buffer was allocated late at runtime.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30335 a1c6a512-1295-4272-9138-f99709370657
1 file changed