7127  remove -Wno-missing-braces from Makefile.uts

@@ -67,12 +67,11 @@
         &urtw_dev_ops           /* driver specific ops */
 };
 
 static struct modlinkage modlinkage = {
         MODREV_1,
-        (void *)&urtw_modldrv,
-        NULL
+        { (void *)&urtw_modldrv, NULL }
 };
 
 static int      urtw_m_stat(void *,  uint_t, uint64_t *);
 static int      urtw_m_start(void *);
 static void     urtw_m_stop(void *);