move defines.s to include directory

boot1/build.rs

@@ -36,7 +36,7 @@ fn build_asm(nasm: &Nasm, out_dir: &Path) {
   nasm.assemble(
     &out_dir.join("prelude.bin"),
     &["asm/prelude.s".as_ref()],
-    &["..".as_ref()],
+    &["../include".as_ref()],
   ).unwrap();
 }