Bremen: add domain seed and ipv4 präfix

Signed-off-by: Jan-Tarek Butt <tarek@ring0.de>

domains/bremen.conf

 {
 	domain_names = { bremen = 'Bremen' },
-	domain_seed = '',
+	domain_seed = 'da213cd742af54c91a6840f381ab8aaaf9ed0b5ff175f88175c76c07e85872ba',
 
 	prefix6 = '',
 	extra_prefixes6 = { 'fd74:fdaa:9dc4::/64' },
-	prefix4 = '',
+	prefix4 = '10.72.48.0/21',
 
 	wifi24 = {
 		ap = {
@@ -13,7 +13,7 @@
 			owe_transition_mode = true,
 		},
 		mesh = {
-			id = 't-ffnw-mesh_',
+			id = 't-ffnw-mesh_02:00:0a:48:30:00',
 		},
 	},
 	wifi5 = {
@@ -23,7 +23,7 @@
 			owe_transition_mode = true,
 		},
 		mesh = {
-			id = 't-ffnw-mesh_',
+			id = 't-ffnw-mesh_02:00:0a:48:30:00',
 		},
 	},