e153b34643
Sometimes it is useful to be able to tell ota_from_target_files to not sign the output zip file. For instance, the private release key may not be available when ota_from_target_files is executed; similarly the release tools may not be available or executable where the private key is stored. This change adds an option, '--no_signing', to simply output the unsigned OTA zip file, instead of spuriously signing it with the test key even though the zip file would need to be re-signed later with a different key. Change-Id: I1f3c4dc8ffa35ce85478f848b147aff3d40fe283