fixed 'qubes-template-whonix: make[1]: *** No rule to make target 'rp…

…ms-vm'. Stop.' - Thanks to @marmarek for suggesting the fix! - https://phabricator.whonix.org/T407

Makefile.builder

@@ -0,0 +1,8 @@
+#!/usr/bin/make -f
+
+## Copyright (C) 2012 - 2014 Patrick Schleizer <adrelanos@riseup.net>
+## See the file COPYING for copying conditions.
+
+## Empty Makefile.builder to prevent Qubes Builder from trying to build this
+## and failing.
+## https://phabricator.whonix.org/T407