alsa-state: Adjust packaging of asound.conf

If VIRTUAL-RUNTIME_alsa-state has been changed (as mel.conf
does in the case of systemd) then the asound.conf file will
not be included in the target.  Adjust the packaging so that
it ends up in the right place.

Signed-off-by: Drew Moseley <drew_moseley@mentor.com>
external-toolchain: Search for debug addons in lib64 as well as lib.

Signed-off-by: Drew Moseley <drew_moseley@mentor.com>