rust: device: WIP(?): Make as_raw() public for AOP series

Signed-off-by: Sasha Finkelstein <fnkl.kernel@gmail.com>
Signed-off-by: Janne Grunau <j@jannau.net>

Author: WhatAmISupposedToPutHere

rust/kernel/device.rs

@@ -333,7 +333,7 @@ impl Device<Bound> {
 
 impl<Ctx: DeviceContext> Device<Ctx> {
     /// Obtain the raw `struct device *`.
-    pub(crate) fn as_raw(&self) -> *mut bindings::device {
+    pub fn as_raw(&self) -> *mut bindings::device {
         self.0.get()
     }