Merge pull request #234455 from NixOS/qemu/memory-size-32bits

nixos/qemu-vm: fix 32-bits assert for memorySize

nixos/modules/virtualisation/qemu-vm.nix

···
               '';
           }
         ])) ++ [
-          { assertion = pkgs.stdenv.hostPlatform.is32bit && cfg.memorySize < 2047;
+          { assertion = pkgs.stdenv.hostPlatform.is32bit -> cfg.memorySize < 2047;
             message = ''
               virtualisation.memorySize is above 2047, but qemu is only able to allocate 2047MB RAM on 32bit max.
             '';