Conform moved CRC module to existing conventions; make it appear in docs

Author: Byron

crates/core_arch/src/acle/mod.rs

@@ -120,7 +120,9 @@ mod simd32;
 pub use self::simd32::*;
 
 #[cfg(any(target_arch = "aarch64", target_feature = "v7"))]
-pub mod crc;
+mod crc;
+#[cfg(any(target_arch = "aarch64", target_feature = "v7", doc))]
+pub use crc::*;
 
 mod sealed {
     pub trait Dmb {

crates/core_arch/src/arm/mod.rs

@@ -24,9 +24,6 @@ mod neon;
 #[cfg(any(target_arch = "aarch64", target_feature = "v7", doc))]
 pub use self::neon::*;
 
-#[cfg(any(target_arch = "aarch64", target_feature = "v7"))]
-pub use crate::core_arch::acle::crc::*;
-
 #[cfg(any(target_arch = "aarch64", target_feature = "v7"))]
 mod crypto;
 #[cfg(any(target_arch = "aarch64", target_feature = "v7"))]