Update loongarch64 (#66)

Amends historic commits:
  - 78d2dfc ("Update to bindgen 0.65.")
  - 3092329 ("Enable the `size_t_is_usize` option in bindgen.")
  - f3068b1 ("Split "general" into a few different modules.")

Author: heiher

src/loongarch64/errno.rs

@@ -1,4 +1,4 @@
-/* automatically generated by rust-bindgen 0.59.2 */
+/* automatically generated by rust-bindgen 0.65.1 */
 
 pub const EPERM: u32 = 1;
 pub const ENOENT: u32 = 2;