Update fs *_MAGIC constants

* xlat/fsmagic.in: Add CGROUP2_SUPER_MAGIC and OVERLAYFS_SUPER_MAGIC.
diff --git a/xlat/fsmagic.in b/xlat/fsmagic.in
index b8c6468..06decd3 100644
--- a/xlat/fsmagic.in
+++ b/xlat/fsmagic.in
@@ -52,12 +52,14 @@
 { 0x6165676c,	"PSTOREFS_MAGIC"	},
 { 0x62646576,	"BDEVFS_MAGIC"		},
 { 0x62656572,	"SYSFS_MAGIC"		},
+{ 0x63677270,	"CGROUP2_SUPER_MAGIC"	},
 { 0x64626720,	"DEBUGFS_MAGIC"		},
 { 0x68191122,	"QNX6_SUPER_MAGIC"	},
 { 0x73636673,	"SECURITYFS_MAGIC"	},
 { 0x73717368,	"SQUASHFS_MAGIC"	},
 { 0x73727279,	"BTRFS_TEST_MAGIC"	},
 { 0x73757245,	"CODA_SUPER_MAGIC"	},
+{ 0x794c7630,	"OVERLAYFS_SUPER_MAGIC"	},
 { 0x858458f6,	"RAMFS_MAGIC"		},
 { 0x9123683e,	"BTRFS_SUPER_MAGIC"	},
 { 0x958458f6,	"HUGETLBFS_MAGIC"	},