all: update to wireguard-go API changes

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>

ipn/prefs.go

@@ -113,7 +113,7 @@ func compareIPNets(a, b []wgcfg.CIDR) bool {
 		return false
 	}
 	for i := range a {
-		if !a[i].IP.Equal(&b[i].IP) || a[i].Mask != b[i].Mask {
+		if !a[i].IP.Equal(b[i].IP) || a[i].Mask != b[i].Mask {
 			return false
 		}
 	}

ipn/prefs_test.go

@@ -32,7 +32,7 @@ func TestPrefsEqual(t *testing.T) {
 			if err != nil {
 				panic(err)
 			}
-			ns = append(ns, *n)
+			ns = append(ns, n)
 		}
 		return ns
 	}