Merge bitcoin/bitcoin#24134: build: Fix zeromq package when cross-compiling

f13e642c831c5689cb2bb7f5c4f9cb4c0c03ef21 build: Disable valgrind when building zeromq package in depends (Hennadii Stepanov)
b970f03beae0f3ae6a796f0e3b97732fc579f6aa build: Disable libbsd when building zeromq package in depends (Hennadii Stepanov)
77899991b1e29a45bc377b21330148cb7cc08923 build: Update netbsd_kevent_void.patch (Hennadii Stepanov)

Pull request description:

  Since v4.3.3 (https://github.com/zeromq/libzmq/commit/068385c951c0608edec6264d55ba9c4c923acccc) `libzmq` uses `libbsd` by default.

  This PR disables `libbsd` explicitly, as it's not a part of our depends. Zeromq will fallback to its internal `strlcpy` implementation.

  Otherwise, on systems with installed `libbsd-dev` package the `zeromq` package build system erroneously detects `libbsd` package from the host system:

  ```diff
  --- a/libzmq.pc
  +++ b/libzmq.pc
  @@ -8,5 +8,5 @@
   Version: 4.3.4
   Libs: -L${libdir} -lzmq
   Libs.private:  -lpthread
  -Requires.private:
  +Requires.private:  libbsd
   Cflags: -I${includedir}
  ```

  This causes the `configure` fails to detect the `zeromq` package:
  ```
  configure: WARNING: libzmq version 4.x or greater not found, disabling
  ```

  ---

  Other minor improvements:
  - fixed `netbsd_kevent_void.patch` offset
  - disabled valgrind as it's used in unit tests which we do not run:
  ```diff
  --- a/zmq-configure-output
  +++ b/zmq-configure-output
  @@ -119,11 +119,6 @@
   checking whether the g++ -m64 linker (/usr/bin/ld -m elf_x86_64) supports shared libraries... yes
   checking dynamic linker characteristics... (cached) GNU/Linux ld.so
   checking how to hardcode library paths into programs... immediate
  -checking for valgrind... valgrind
  -checking for Valgrind tool memcheck... memcheck
  -checking for Valgrind tool helgrind... helgrind
  -checking for Valgrind tool drd... drd
  -checking for Valgrind tool exp-sgcheck... exp-sgcheck
   checking linker version script flag... --version-script
   checking if version scripts can use complex wildcards... yes
   checking for working posix_memalign... yes
  ```

ACKs for top commit:
  fanquake:
    ACK f13e642c831c5689cb2bb7f5c4f9cb4c0c03ef21

Tree-SHA512: d4c86d4a841eb6e7c32157e84972243072f905496c2a4c14ec6f6ab4216df6695cbf29baa2233ce27eaede35d1e250ad2f9975b16f570d01509f0c5da4597cad

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