adt_installer: Fix real envrionment script issues

adt_installer: Fix real envrionment script issues

The previous change to adt_installer was incorrect, this reverts it and
fixes the real issue. The real issue is that if a previous installation was
present, it may have been moved and therefore the paths returned by opkg
could be a little odd.

To address this, when we move files to a different location, ensure we
update the *.list files with the revised paths. This means later installs
over the top return consistent values from opkg and the script works
as intended.

(From OE-Core rev: 8a206f88e5396d7d136480e0efdb5071d5aafeb6)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>