build: copy config.{guess,sub} post autogen in zmq package

Otherwise our config.guess and config.sub will be copied over. This
problem has been masked by the fact that modern systems ship with
versions that recognise all the triplets we use (namely
arm64-apple-darwin). However building on ubuntu 20.04 surfaces the
issue.

Fixes #26420.

Author: fanquake

depends/packages/zeromq.mk

@@ -20,12 +20,12 @@ endef
 
 define $(package)_preprocess_cmds
   patch -p1 < $($(package)_patch_dir)/remove_libstd_link.patch && \
-  patch -p1 < $($(package)_patch_dir)/netbsd_kevent_void.patch && \
-  cp -f $(BASEDIR)/config.guess $(BASEDIR)/config.sub config
+  patch -p1 < $($(package)_patch_dir)/netbsd_kevent_void.patch
 endef
 
 define $(package)_config_cmds
   ./autogen.sh && \
+  cp -f $(BASEDIR)/config.guess $(BASEDIR)/config.sub config && \
   $($(package)_autoconf)
 endef