archive-release: fix paths in the images archive for tar >=1.27

Signed-off-by: Christopher Larson <kergoth@gmail.com>
archive-release: fix missing downloads

JIRA: SB-2679

Signed-off-by: Christopher Larson <kergoth@gmail.com>
Merge pull request #157 from MentorEmbedded/sb-2679

archive-release: fix missing downloads issue