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

@@ -142,11 +142,11 @@
 static int gem_mac_start(struct gem_dev *dp);
 static int gem_mac_stop(struct gem_dev *dp, uint_t flags);
 static void gem_mac_ioctl(struct gem_dev *dp, queue_t *wq, mblk_t *mp);
 
 static  struct ether_addr       gem_etherbroadcastaddr = {
-        0xff, 0xff, 0xff, 0xff, 0xff, 0xff
+        { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }
 };
 
 int gem_speed_value[] = {10, 100, 1000};
 
 /* ============================================================== */