scripts: generate_rust_analyzer: fix resolution of #[pin_data] macros

Currently, rust-analyzer fails to properly resolve structs annotated with
`#[pin_data]`. This prevents IDE features like "Go to Definition" from
working correctly for those structs.

Add the missing configuration to `generate_rust_analyzer.py` to ensure
the `pin-init` crate macros are handled correctly.

Signed-off-by: SeungJong Ha <engineer.jjhama@gmail.com>
Fixes: d7659acca7a3 ("rust: add pin-init crate build infrastructure")
Cc: stable@vger.kernel.org
Tested-by: Tamir Duberstein <tamird@kernel.org>
Acked-by: Tamir Duberstein <tamird@kernel.org>
Acked-by: Gary Guo <gary@garyguo.net>
Reviewed-by: Jesung Yang <y.j3ms.n@gmail.com>
Link: https://patch.msgid.link/20260123-fix-pin-init-crate-dependecies-v2-1-bb1c2500e54c@gmail.com
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>