Update loongarch64.rs

Author: Dandan336

sys/src/linux/loongarch64.rs

@@ -574,7 +574,7 @@ pub const LV2_WORKER_PREFIX: &[u8; 33usize] = b"http://lv2plug.in/ns/ext/worker#
 pub const LV2_WORKER__interface: &[u8; 42usize] = b"http://lv2plug.in/ns/ext/worker#interface\0";
 pub const LV2_WORKER__schedule: &[u8; 41usize] = b"http://lv2plug.in/ns/ext/worker#schedule\0";
 #[doc = " The header of an atom:Atom."]
-#[repr(C)]
+#[repr(C, align(8))]
 #[derive(Debug, Copy, Clone)]
 pub struct LV2_Atom {
     #[doc = "< Size in bytes, not including type and size."]