cmd/swarm, p2p, swarm: Enable ENR in binary/execadapter (#19309)

* cmd/swarm, p2p, swarm: Enable ENR in binary/execadapter

* cmd/p2p/swarm: Remove comments + config.Enode nomarshal

* p2p/simulations: Remove superfluous error check

* p2p/simulation: Move init enode comment

* swarm/api: Check error in config test

* swarm, p2p/simulations, cmd/swarm: Use nodekey in binary record sign

* cmd/swarm: Make nodekey available for swarm api config

swarm/network_test.go

@@ -311,8 +311,12 @@ func testSwarmNetwork(t *testing.T, o *testSwarmNetworkOptions, steps ...testSwa
 			if err != nil {
 				return nil, cleanup, err
 			}
+			nodekey, err := crypto.GenerateKey()
+			if err != nil {
+				return nil, cleanup, err
+			}
 
-			config.Init(privkey)
+			config.Init(privkey, nodekey)
 			config.DeliverySkipCheck = o.SkipCheck
 			config.Port = ""