Add missing const on policy_get_xxx function parameter
diff --git a/include/psa/crypto.h b/include/psa/crypto.h
index 4c8cc40..e57f564 100644
--- a/include/psa/crypto.h
+++ b/include/psa/crypto.h
@@ -1205,10 +1205,10 @@
psa_algorithm_t alg);
/** \brief Retrieve the usage field of a policy structure. */
-psa_key_usage_t psa_key_policy_get_usage(psa_key_policy_t *policy);
+psa_key_usage_t psa_key_policy_get_usage(const psa_key_policy_t *policy);
/** \brief Retrieve the algorithm field of a policy structure. */
-psa_algorithm_t psa_key_policy_get_algorithm(psa_key_policy_t *policy);
+psa_algorithm_t psa_key_policy_get_algorithm(const psa_key_policy_t *policy);
/** \brief Set the usage policy on a key slot.
*