rust: device: Replace CString with CStr in property_present()

The property_present() method expects a &CString currently and will work
only with heap allocated C strings.

In order to make it work with compile-time string constants too, change
the argument type to &CStr.

Signed-off-by: Viresh Kumar <[email protected]>
Reviewed-by: Alice Ryhl <[email protected]>
Link: https://lore.kernel.org/r/e97dcbe0418cc1053fb4bcfac65cc02a0afcdf78.1737005078.git.viresh.kumar@linaro.org
Signed-off-by: Greg Kroah-Hartman <[email protected]>

Author: vireshk

rust/kernel/device.rs

@@ -6,7 +6,7 @@
 
 use crate::{
     bindings,
-    str::CString,
+    str::CStr,
     types::{ARef, Opaque},
 };
 use core::{fmt, ptr};
@@ -183,8 +183,8 @@ impl Device {
     }
 
     /// Checks if property is present or not.
-    pub fn property_present(&self, name: &CString) -> bool {
-        // SAFETY: By the invariant of `CString`, `name` is null-terminated.
+    pub fn property_present(&self, name: &CStr) -> bool {
+        // SAFETY: By the invariant of `CStr`, `name` is null-terminated.
         unsafe { bindings::device_property_present(self.as_raw().cast_const(), name.as_ptr() as *const _) }
     }
 }