update opensuse element

This patch updates the openSuse element to work with the new
base image file format. It should be noted that the base image
file name has changed several times while updating this element,
and and may need to be set manually via the "BASE_IMAGE_NAME"
env var.

Change-Id: I4dac8bf9a4bf76a00d4a04cbf063fd245b11f3d6
Merge "update opensuse element"