Update to gnupg-2.2.40

ChangeLog: https://dev.gnupg.org/T6181

Test report from op@, thanks!

security/gnupg/Makefile

@@ -2,7 +2,7 @@ PORTROACH =	limitw:1,even
 
 COMMENT =	GNU privacy guard - a free PGP replacement
 
-DISTNAME =	gnupg-2.2.39
+DISTNAME =	gnupg-2.2.40
 
 CATEGORIES =	security
 

security/gnupg/distinfo

@@ -1,2 +1,2 @@
-SHA256 (gnupg-2.2.39.tar.bz2) = q3TbZoXwJtfAoQtSfs3ezWCGBqFpHRX9pdCn99J+TC8=
-SIZE (gnupg-2.2.39.tar.bz2) = 7290098
+SHA256 (gnupg-2.2.40.tar.bz2) = EWSymnXoq5PqFQMzABSeGHKn72vdo9fHgimnNfggTCg=
+SIZE (gnupg-2.2.40.tar.bz2) = 7301631

security/gnupg/patches/patch-dirmngr_server_c

@@ -0,0 +1,17 @@
+dirmngr: Fix build with no LDAP support.
+https://dev.gnupg.org/rGa5c3821664886ffffbe6a83aac088a6e0088a607
+
+Index: dirmngr/server.c
+--- dirmngr/server.c.orig
++++ dirmngr/server.c
+@@ -3135,8 +3135,10 @@ start_command_handler (assuan_fd_t fd, unsigned int se
+                ctrl->refcount);
+   else
+     {
++#if USE_LDAP
+       ks_ldap_free_state (ctrl->ks_get_state);
+       ctrl->ks_get_state = NULL;
++#endif
+       release_ctrl_ocsp_certs (ctrl);
+       xfree (ctrl->server_local);
+       dirmngr_deinit_default_ctrl (ctrl);