replace this with sha512 when it lands in upstream cekit (elmiko)

[todo]

openshift-spark/change-yaml.sh

Lines 82 to 87 in f7053f8

	# TODO replace this with sha512 when it lands in upstream cekit (elmiko)
	# Fix the md5 sum references on the line following the url
	calcsum=$(md5sum /tmp/spark-${SPARK}-bin-hadoop${HVER}.tgz | cut -d" " -f1)
	sed -i '\@url: https://archive.apache.org/dist/spark/@!b;n;s/md5.*/md5: '$calcsum'/' image.yaml
	# Fix the spark version label

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This issue was generated by todo based on a TODO comment in f7053f8 when #80 was merged. cc @elmiko.