ikev2: Only request reauth during IKE_AUTH if active reauth is not possible

If we can initiate the reauthentication ourselves, there is no reason to
explicitly request the peer to do so (at basically the same time).

testing/tests/ikev2/reauth-late/hosts/carol/etc/swanctl/swanctl.conf

@@ -4,6 +4,8 @@ connections {
       local_addrs  = PH_IP_CAROL
       remote_addrs = PH_IP_MOON
 
+      vips = 0.0.0.0
+
       # short lifetimes for testing purposes
       reauth_time = 20s
       over_time = 10s

testing/tests/ikev2/reauth-late/hosts/moon/etc/swanctl/swanctl.conf

@@ -3,6 +3,8 @@ connections {
    rw {
       local_addrs = PH_IP_MOON
 
+      pools = rw
+
       # short lifetimes for testing purposes
       reauth_time = 60m
       over_time = 10s
@@ -28,3 +30,9 @@ connections {
       proposals = aes128-sha256-x25519
    }
 }
+
+pools {
+   rw {
+      addrs = 10.3.0.0/24
+   }
+}