Fix style issue in hash_setup()

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
diff --git a/tests/suites/test_suite_psa_crypto.function b/tests/suites/test_suite_psa_crypto.function
index af6ef79..97bb8e7 100644
--- a/tests/suites/test_suite_psa_crypto.function
+++ b/tests/suites/test_suite_psa_crypto.function
@@ -1910,7 +1910,7 @@
     PSA_ASSERT( psa_crypto_init( ) );
 
     /* Hash Setup, one-shot */
-    output_size = PSA_HASH_LENGTH(alg);
+    output_size = PSA_HASH_LENGTH( alg );
     ASSERT_ALLOC( output, output_size );
 
     status = psa_hash_compute( alg, NULL, 0,