added openwrt tftp boot config

ipxe/openwrt-tftp-boot

@@ -0,0 +1,25 @@
+config dnsmasq
+        option enable_tftp '1'
+        option tftp_root '/srv/tftp'
+
+config match
+        option networkid 'bios'
+        option match '60,PXEClient:Arch:00000'
+
+config match
+        option networkid 'efi64'
+        option match '60,PXEClient:Arch:00009'
+
+config match
+        option networkid 'efi64'
+        option match '60,PXEClient:Arch:00007'
+
+config boot
+        option filename 'tag:bios,tag:!ipxe,ipxe.kpxe'
+        option serveraddress '192.168.1.1'
+        option servername 'router'
+
+config boot
+        option filename 'tag:efi64,tag:!ipxe,ipxe.efi'
+        option serveraddress '192.168.1.1'
+        option servername 'router'