rust: prelude: prevent doc inline of external imports

This shows exactly where the items are from, previously the items from
macros, alloc and core were shown as a declaration from the kernel crate,
this shows the correct path.

Link: https://github.com/rust-lang/rust/issues/106713
Signed-off-by: Finn Behrens <fin@nyantec.com>
Reviewed-by: Vincenzo Palazzo <vincenzopalazzodev@gmail.com>
[Reworded to add Link, fixed two typos and comment style]
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>

rust/kernel/prelude.rs

@@ -11,15 +11,21 @@
 //! use kernel::prelude::*;
 //! ```
 
+#[doc(no_inline)]
 pub use core::pin::Pin;
 
+#[doc(no_inline)]
 pub use alloc::{boxed::Box, vec::Vec};
 
+#[doc(no_inline)]
 pub use macros::{module, vtable};
 
 pub use super::build_assert;
 
-pub use super::{dbg, pr_alert, pr_crit, pr_debug, pr_emerg, pr_err, pr_info, pr_notice, pr_warn};
+// `super::std_vendor` is hidden, which makes the macro inline for some reason.
+#[doc(no_inline)]
+pub use super::dbg;
+pub use super::{pr_alert, pr_crit, pr_debug, pr_emerg, pr_err, pr_info, pr_notice, pr_warn};
 
 pub use super::static_assert;