7882 Add /dev/full , the always-full memory device
Reviewed by: Adam Stevko <adam.stevko@gmail.com>
Reviewed by: Toomas Soome <tsoome@me.com>

@@ -65,10 +65,11 @@
         <device match="cryptoadm" />
         <device match="dsk" />
         <device match="dtrace/*" />
         <device match="dtrace/provider/*" />
         <device match="fd" />
+        <device match="full" />
         <device match="ipnet" />
         <device match="kstat" />
         <device match="lo0" />
         <device match="log" />
         <device match="logindmux" />