don't validate plymouth mount at all

Signed-off-by: Zen <[email protected]>

Author: desultory

src/ugrd/base/plymouth.toml

@@ -13,7 +13,7 @@ run_dirs = ["plymouth"]
 type = "devpts"
 destination = "/dev/pts"
 options = ['noauto', 'nosuid', 'noexec', 'rw', 'mode=620', 'gid=5']
-no_validate_options = true
+no_validate = true
 path = "devpts"
 
 [imports.build_enum]