distro/rhel85: partition table for edge + aarch64

Define the partition layout for RHEL for Edge images on arm64.

internal/distro/rhel85/partition_tables.go

@@ -234,4 +234,49 @@ var edgeBasePartitionTables = distro.BasePartitionTableMap{
 			},
 		},
 	},
+	distro.Aarch64ArchName: disk.PartitionTable{
+		UUID: "D209C89E-EA5E-4FBD-B161-B461CCE297E0",
+		Type: "gpt",
+		Partitions: []disk.Partition{
+			{
+				Size: 260096, // 127 MB
+				Type: disk.EFISystemPartitionGUID,
+				UUID: disk.EFISystemPartitionUUID,
+				Filesystem: &disk.Filesystem{
+					Type:         "vfat",
+					UUID:         disk.EFIFilesystemUUID,
+					Mountpoint:   "/boot/efi",
+					Label:        "EFI-SYSTEM",
+					FSTabOptions: "defaults,uid=0,gid=0,umask=077,shortname=winnt",
+					FSTabFreq:    0,
+					FSTabPassNo:  2,
+				},
+			},
+			{
+				Size: 786432, // 384 MB
+				Type: disk.FilesystemDataGUID,
+				UUID: disk.FilesystemDataUUID,
+				Filesystem: &disk.Filesystem{
+					Type:         "xfs",
+					Mountpoint:   "/boot",
+					Label:        "boot",
+					FSTabOptions: "defaults",
+					FSTabFreq:    1,
+					FSTabPassNo:  1,
+				},
+			},
+			{
+				Type: disk.FilesystemDataGUID,
+				UUID: disk.RootPartitionUUID,
+				Filesystem: &disk.Filesystem{
+					Type:         "xfs",
+					Label:        "root",
+					Mountpoint:   "/",
+					FSTabOptions: "defaults",
+					FSTabFreq:    0,
+					FSTabPassNo:  0,
+				},
+			},
+		},
+	},
 }