file_sys: Rename other ContentRecordType members

src/core/file_sys/nca_metadata.h

@@ -35,8 +35,8 @@ enum class ContentRecordType : u8 {
     Program = 1,
     Data = 2,
     Control = 3,
-    Manual = 4,
-    Legal = 5,
+    HtmlDocument = 4,
+    LegalInformation = 5,
     DeltaFragment = 6,
 };