This commit is to add sw_version to N-1 load metadata file which is
created during the load import. This element is used for
'software list --release' and 'software delete' commands.
Test Plan:
PASS: build the iso
PASS: upload N-1 load
PASS: run 'software list --release'
Task: 51005
Story: 2010676
Change-Id: I4f14bd1eddf497168411285eb162a216201f3cfe
Signed-off-by: junfeng-li <junfeng.li@windriver.com>
c6d64feab8