Add note that lvmlockd with sanlock is not supported (#423) #1572

Job	Run time
select-dc-files	28s
validate (./DC-SLE-HA-all ./l10n/sleha/de-de/DC-SLE-HA-all)	26s
validate (./l10n/sleha/es-es/DC-SLE-HA-all)	27s
validate (./l10n/sleha/fr-fr/DC-SLE-HA-all)	19s
validate (./l10n/sleha/it-it/DC-SLE-HA-all)	28s
validate (./l10n/sleha/ja-jp/DC-SLE-HA-all)	20s
validate (./l10n/sleha/pt-br/DC-SLE-HA-all)	22s
validate (./l10n/sleha/zh-cn/DC-SLE-HA-all)	22s
validate (./l10n/sleha/zh-tw/DC-SLE-HA-all)	25s
build-html (DC-SLE-HA-administration)	1m 25s
build-html (DC-SLE-HA-geo-clustering)	1m 2s
build-html (DC-SLE-HA-geo-clustering-guide)	59s
build-html (DC-SLE-HA-installation)	57s
build-html (DC-SLE-HA-nfs-storage)	56s
build-html (DC-SLE-HA-pacemaker-remote)	55s
publish	41s
	10m 32s

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