SDK: generate system-image.zip in sdk_repo

Also:
- in the images_*_source.props, we can't have the platform
  version name (the human readable string). It's not a valid
  property of the XML.
- disable the included-abi in the platform.

Change-Id: I3db62fde5e436bbe8f8e69eb1495ca4e6b954ba2
6 files changed