atop: fix cross-compilation (#360488)

Author: NickCao

pkgs/by-name/at/atop/package.nix

@@ -22,15 +22,16 @@ stdenv.mkDerivation rec {
     hash = "sha256-m5TGZmAu//e/QC7M5wbDR/OMOctjSY+dOWJoYeVkbiA=";
   };
 
-  nativeBuildInputs = lib.optionals withAtopgpu [
+  nativeBuildInputs = [
+    pkg-config
+  ] ++ lib.optionals withAtopgpu [
     python3.pkgs.wrapPython
   ];
 
   buildInputs = [
     glib
     zlib
     ncurses
-    pkg-config
   ] ++ lib.optionals withAtopgpu [
     python3
   ];