Switch to the new code style

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
diff --git a/tests/include/test/drivers/aead.h b/tests/include/test/drivers/aead.h
index 2207cb3..182bed2 100644
--- a/tests/include/test/drivers/aead.h
+++ b/tests/include/test/drivers/aead.h
@@ -41,10 +41,10 @@
 
 #define MBEDTLS_TEST_DRIVER_AEAD_INIT { 0, 0, 0 }
 static inline mbedtls_test_driver_aead_hooks_t
-    mbedtls_test_driver_aead_hooks_init( void )
+mbedtls_test_driver_aead_hooks_init(void)
 {
     const mbedtls_test_driver_aead_hooks_t v = MBEDTLS_TEST_DRIVER_AEAD_INIT;
-    return( v );
+    return v;
 }
 
 extern mbedtls_test_driver_aead_hooks_t mbedtls_test_driver_aead_hooks;
@@ -56,7 +56,7 @@
     const uint8_t *nonce, size_t nonce_length,
     const uint8_t *additional_data, size_t additional_data_length,
     const uint8_t *plaintext, size_t plaintext_length,
-    uint8_t *ciphertext, size_t ciphertext_size, size_t *ciphertext_length );
+    uint8_t *ciphertext, size_t ciphertext_size, size_t *ciphertext_length);
 
 psa_status_t mbedtls_test_transparent_aead_decrypt(
     const psa_key_attributes_t *attributes,
@@ -65,7 +65,7 @@
     const uint8_t *nonce, size_t nonce_length,
     const uint8_t *additional_data, size_t additional_data_length,
     const uint8_t *ciphertext, size_t ciphertext_length,
-    uint8_t *plaintext, size_t plaintext_size, size_t *plaintext_length );
+    uint8_t *plaintext, size_t plaintext_size, size_t *plaintext_length);
 
 #endif /* PSA_CRYPTO_DRIVER_TEST */
 #endif /* PSA_CRYPTO_TEST_DRIVERS_AEAD_H */