During cooker shutdown, its possible the parser isn't cleaned up. Fix
this (which may partially explain why threads were left hanging around
at exit).
(Bitbake rev: fe1b57f4d39c287526353387e164c863eb9df421)
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Signed-off-by: Steve Sakoman <steve@sakoman.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>