orm: fix order by with custom column name (#22813)

vlib/orm/orm_order_by_custom_field_test.v

@@ -0,0 +1,37 @@
+import db.sqlite
+
+@[table: 'prefixed_records']
+struct Record {
+	id   int    @[primary; sql: 'CustomId']
+	name string @[sql: 'named_name']
+}
+
+fn test_main() {
+	mut db := sqlite.connect(':memory:')!
+	defer { db.close() or {} }
+
+	prepare(db)!
+
+	last := sql db {
+		select from Record where name == 'first' order by id limit 1
+	}!
+	assert last.len == 1
+	assert last[0].name == 'first'
+}
+
+fn prepare(db sqlite.DB) ! {
+	db.exec('
+  CREATE TABLE prefixed_records (
+    CustomId INTEGER PRIMARY KEY AUTOINCREMENT,
+    named_name TEXT
+  );
+  ')!
+
+	db.exec("
+  INSERT INTO prefixed_records
+    (named_name)
+  VALUES
+    ('first'),
+    ('last');
+  ")!
+}