Add step for multiple cluster MD devices (#425) #1600

Job	Run time
select-dc-files	29s
validate (./DC-SLE-HA-all ./l10n/sleha/de-de/DC-SLE-HA-all)	26s
validate (./l10n/sleha/es-es/DC-SLE-HA-all)	22s
validate (./l10n/sleha/fr-fr/DC-SLE-HA-all)	24s
validate (./l10n/sleha/it-it/DC-SLE-HA-all)	24s
validate (./l10n/sleha/ja-jp/DC-SLE-HA-all)	23s
validate (./l10n/sleha/pt-br/DC-SLE-HA-all)	20s
validate (./l10n/sleha/zh-cn/DC-SLE-HA-all)	20s
validate (./l10n/sleha/zh-tw/DC-SLE-HA-all)	22s
build-html (DC-SLE-HA-administration)	1m 43s
build-html (DC-SLE-HA-geo-clustering)	55s
build-html (DC-SLE-HA-geo-clustering-guide)	59s
build-html (DC-SLE-HA-installation)	51s
build-html (DC-SLE-HA-nfs-storage)	49s
build-html (DC-SLE-HA-pacemaker-remote)	1m 7s
publish	18s
	10m 12s

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