Use jinja2 templates in tsiggss

- The ns1/named.conf.j2 contains "@" which is a special jinja character,
  use the raw directive to escape it.

(cherry picked from commit 1aa2f7249a)

bin/tests/system/tsiggss/ns1/named.conf.j2

@@ -39,11 +39,13 @@ zone "example.nil." IN {
 	type primary;
 	file "example.nil.db";
 
+{% raw %}
 	update-policy {
 		grant Administrator@EXAMPLE.NIL wildcard * A AAAA SRV CNAME;
 		grant testdenied@EXAMPLE.NIL wildcard * TXT;
 		grant "local:auth.sock" external * CNAME;
 	};
+{% endraw %}
 
 	/* we need to use check-names ignore so _msdcs A records can be created */
 	check-names ignore;

bin/tests/system/tsiggss/setup.sh

@@ -13,7 +13,5 @@
 
 . ../conf.sh
 
-copy_setports ns1/named.conf.in ns1/named.conf
-
 key=$($KEYGEN -Cq -K ns1 -a $DEFAULT_ALGORITHM -b $DEFAULT_BITS -n HOST -T KEY key.example.nil.)
 cat ns1/example.nil.db.in ns1/${key}.key >ns1/example.nil.db