Refactor Type-C service to remove static_cell dependency and improve context handling

- Removed `static_cell` dependency from Cargo.lock and Cargo.toml in examples and type-c-service.
- Updated Type-C service methods to accept a reference to `intrusive_list::IntrusiveList` for better context management.
- Modified various service methods to pass the controllers list where necessary, ensuring proper context usage.
- Commented out unused code related to power policy channels and service initialization.
- Adjusted the task closure to work with the updated service structure.
- Enhanced error handling and logging throughout the service methods.

Author: tullom

embedded-service/src/lib.rs

@@ -78,5 +78,4 @@ pub async fn init() {
     cfu::init();
     keyboard::init();
     power::policy::init();
-    type_c::controller::init();
 }