Reformat list of built packages to a package per line format. Makes
easier to cope with subsequent changes.
(From OE-Core rev: aff19af6804b27f1a97ce11b5bd35190426c6f3c)
Signed-off-by: Maciej Borzecki <maciej.borzecki@open-rnd.pl>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>