bb.org_4gb_stable.sh: speed up xz operation
bb.org_4gb_stable.sh: speed up xz operation
jadonk/image-builder,beagleboard/image-builder,miloh/image-builder,RobertCNelson/omap-image-builder,robert-budde/omap-image-builder,miloh/image-builder,robert-budde/omap-image-builder,RobertCNelson/omap-image-builder,beagleboard/image-builder,jadonk/image-builder