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

@@ -1075,11 +1075,11 @@
  */
 /* ARGSUSED */
 static int
 sppp_dlphyreq(queue_t *q, mblk_t *mp, spppstr_t *us)
 {
-        static struct ether_addr addr = { 0 };
+        static struct ether_addr addr = { {0} };
 
         dlphysaddrack(q, mp, (char *)&addr, ETHERADDRL);
         return (0);
 }