loader: disable mod elf on ARM64 to pass the test coverage

Signed-off-by: Qiu Wenbo <qiuwenbo@phytium.com.cn>

Author: crab2313

src/loader/mod.rs

@@ -40,6 +40,7 @@ pub mod bootparam;
 #[allow(non_snake_case)]
 #[allow(non_upper_case_globals)]
 #[cfg_attr(feature = "cargo-clippy", allow(clippy::all))]
+#[cfg(any(target_arch = "x86", target_arch = "x86_64"))]
 mod elf;
 mod struct_util;