Merge bitcoin/bitcoin#26421: build: copy config.{guess,sub} post autogen in zmq package

1914e47 build: copy config.{guess,sub} post autogen in zmq package (fanquake)

Pull request description:

  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.

ACKs for top commit:
  hebasto:
    ACK 1914e47, tested on Ubuntu 18.04.

Tree-SHA512: dff64c3c62d9f8fc205e5a4dffe8befd58838418d073a15dfe304a0f64b182dfffd9dcf98b53df44bfab905c12a62d03cd5c0f91fa7c4b246ac21ae5f20540fd

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