Add new command line argument '-a' that can be used to define the
directory where results (tarballs) are archived. Giving an empty string
disables archiving which makes sense if you store results in Git.
(From OE-Core rev: d53cf92847aa80724be4412801c993948a09cd27)
Signed-off-by: Markus Lehtonen <markus.lehtonen@linux.intel.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>