Allow to set hwaddress for interface

Change-Id: I430f9ed46ebd72ed66eeb9508e95d7c5970d678e

linux/map.jinja

@@ -92,6 +92,7 @@
     'updelay',
     'hashing-algorithm',
     'hardware-dma-ring-rx',
+    'hwaddr',
 ] %}
 
 {% set network = salt['grains.filter_by']({