Bug 564749 - AbstractReconcilerTest does not work on macOS

Update the build so that the correct dropin is found for the platform
that the build is executing on.

Fix an issue when unzipping on macOS such that the executable isn't
executable.

Change-Id: If74f038ab96d36620296a92d0ab6ff4b5564fac1
Signed-off-by: Alex Blewitt <alex.blewitt@gmail.com>
2 files changed