Style fixes (typos, whitespace, 80 column limit)

Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>
diff --git a/library/psa_crypto_driver_wrappers.c b/library/psa_crypto_driver_wrappers.c
index 28087de..160076e 100644
--- a/library/psa_crypto_driver_wrappers.c
+++ b/library/psa_crypto_driver_wrappers.c
@@ -263,7 +263,7 @@
                     MBEDTLS_SVC_KEY_ID_GET_KEY_ID(
                         psa_get_key_id( attributes ) ) ) )
             {
-                *key_buffer_size = sizeof(psa_drv_slot_number_t);
+                *key_buffer_size = sizeof( psa_drv_slot_number_t );
                 return( PSA_SUCCESS );
             }
 #endif /* MBEDTLS_PSA_CRYPTO_BUILTIN_KEYS */