Fix code style

Signed-off-by: Thomas Daubney <thomas.daubney@arm.com>
diff --git a/library/psa_crypto.c b/library/psa_crypto.c
index 183b4a1..b478341 100644
--- a/library/psa_crypto.c
+++ b/library/psa_crypto.c
@@ -2813,8 +2813,8 @@
     LOCAL_INPUT_ALLOC(input_external, input_length, input);
     LOCAL_OUTPUT_ALLOC(mac_external, mac_size, mac);
     status = psa_mac_compute_internal(key, alg,
-                                    input, input_length,
-                                    mac, mac_size, mac_length, 1);
+                                      input, input_length,
+                                      mac, mac_size, mac_length, 1);
 
 #if defined(MBEDTLS_PSA_COPY_CALLER_BUFFERS)
 exit: