Luks Blackbox Testing add tpm validation support.

[prestist]

Feature Request

When testing luks and using a non static clevis binding as developer I would like to know that not only does the device get encrypted; But I want to verify the binding I used is what is reported after ignition runs.

Add support for ClevisBinding verification in the blackbox tests.

As an example,

func LuksWithTPM() types.Test {
	name := "tpm.filesystem.luks.encrypt"
	in := types.GetBaseDisk()
	out := types.GetBaseDisk()
	mntDevices := []types.MntDevice{
		{
			Label:        "OEM",
			Substitution: "$DEVICE",
		},
	}
	config := `{
		"ignition": { "version": "$version" },
		"storage": {
		  "disks": [
			{
			  "device": "$DEVICE",
			  "partitions": [
				{
					"label": "luks-device",
					"sizeMiB": 0,
					"startMiB": 0
				}
				],
				"wipe_table": true
			}
		  ],
		  "luks": [
			{
			  "clevis": {
				"tpm2": true
			  },	
			  "device": "$DEVICE",
			  "name": "$UUID",
			  "wipe_volume": true
			}
		  ]
		}
	}`

Would be verified by

in[0].Partitions.GetPartition("OEM").ClevisBinding = ""
out[0].Partitions.GetPartition("OEM").ClevisBinding = "tpm2"