psa-crypto-sys/build.rs: Allow unused imports in generated bindings

Solve the issue:

unused import:
self :: psa_crypto_driver_pake_step as psa_crypto_driver_pake_step_t

Obtained from bindgen generating code for an unused type.
There should not a be problem about not using certain bindings

Signed-off-by: Tomás González <tomasagustin.gonzalezorlando@arm.com>

Author: tgonzalezorlandoarm

psa-crypto-sys/src/lib.rs

@@ -23,6 +23,7 @@
 #[allow(clippy::all)]
 #[cfg(feature = "interface")]
 mod psa_crypto_binding {
+    #![allow(unused_imports)]
     include!(concat!(env!("OUT_DIR"), "/shim_bindings.rs"));
 }