uboot: (firmwareOdroidC2/C4) don't invoke patch tool, use patches = [] instead

https://github.com/NixOS/nixpkgs/blob/master/pkgs/stdenv/generic/setup.sh#L948
this can do it nicely.

Signed-off-by: Anton Arapov <anton@deadbeef.mx>

nixos/modules/hardware/network/b43.nix

@@ -0,0 +1,30 @@
+{ config, lib, pkgs, ... }:
+
+with lib;
+
+let kernelVersion = config.boot.kernelPackages.kernel.version; in
+
+{
+
+  ###### interface
+
+  options = {
+
+    networking.enableB43Firmware = mkOption {
+      default = false;
+      type = types.bool;
+      description = ''
+        Turn on this option if you want firmware for the NICs supported by the b43 module.
+      '';
+    };
+
+  };
+
+
+  ###### implementation
+
+  config = mkIf config.networking.enableB43Firmware {
+    hardware.firmware = [ pkgs.b43Firmware_5_1_138 ];
+  };
+
+}