kexectools: always pass host and target to configure

Fixes #56290.

pkgs/os-specific/linux/kexectools/default.nix

@@ -14,6 +14,9 @@ stdenv.mkDerivation rec {
 
   hardeningDisable = [ "format" "pic" "relro" "pie" ];
 
+  # Prevent kexec-tools from using uname to detect target, which is wrong in
+  # cases like compiling for aarch32 on aarch64
+  configurePlatforms = [ "build" "host" ];
   configureFlags = [ "BUILD_CC=${buildPackages.stdenv.cc.targetPrefix}cc" ];
   depsBuildBuild = [ buildPackages.stdenv.cc ];
   buildInputs = [ zlib ];