compiler-builtins: Change gating for outline atomic symbols

Build the symbols whenever outline atomics is in our baseline.

Author: tgross35

library/compiler-builtins/compiler-builtins/src/aarch64_linux.rs renamed to library/compiler-builtins/compiler-builtins/src/aarch64_outline_atomics.rs

@@ -60,8 +60,8 @@ pub mod arm;
 #[cfg(any(target_arch = "aarch64", target_arch = "arm64ec"))]
 pub mod aarch64;
 
-#[cfg(all(target_arch = "aarch64", target_os = "linux", not(feature = "no-asm"),))]
-pub mod aarch64_linux;
+#[cfg(all(target_arch = "aarch64", target_feature = "outline-atomics"))]
+pub mod aarch64_outline_atomics;
 
 #[cfg(all(
     kernel_user_helpers,