When adding patches to the pre-patched ISO some may have the following
precheck scripts: "deploy-precheck" and "upgrade_utils.py".
With this change they will be copied to the upgrades folder inside the
pre-patched ISO.
Test plan:
PASS: Build pre-patched ISO with one patch
PASS: Build pre-patched ISO with more than one patch
Partial-Bug: 2090871
Change-Id: I10186da0cea59b0f8a6560b0d7c77df2abaf19ab
Signed-off-by: Dostoievski Batista <dostoievski.albinobatista@windriver.com>