Adding the external kola test for luks + multipath case

Signed-off-by: Poorna Gottimukkula <Poorna.Gottimukkula1@ibm.com>

tests/kola/root-reprovision/luks/multipath/config.ign

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+../config.ign

tests/kola/root-reprovision/luks/multipath/data

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+../data

tests/kola/root-reprovision/luks/multipath/test.sh

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+#!/bin/bash
+## kola:
+##   # This test reprovisions the rootfs.
+##   tags: "reprovision"
+##   # This uses additionalDisks, which is QEMU only
+##   platforms: qemu
+##   # Root reprovisioning requires at least 4GiB of memory.
+##   minMemory: 4096
+##   # A TPM backend device is not available on s390x to suport TPM.
+##   architectures: "! s390x"
+##   # This test includes a lot of disk I/O and needs a higher
+##   # timeout value than the default.
+##   timeoutMin: 15
+##   description: Verify that LUKS on a mpath disks works.
+##   primaryDisk: ":mpath"
+##   appendKernelArgs: "rd.multipath=default"
+
+set -xeuo pipefail
+
+# shellcheck disable=SC1091
+. "$KOLA_EXT_DATA/commonlib.sh"
+
+# run the rest of the tests
+. $KOLA_EXT_DATA/luks-test.sh