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>

pkgs/tools/networking/wavemon/default.nix

@@ -0,0 +1,36 @@
+{ lib
+, stdenv
+, fetchFromGitHub
+, libnl
+, ncurses
+, pkg-config
+}:
+
+stdenv.mkDerivation rec {
+  pname = "wavemon";
+  version = "0.9.4";
+
+  src = fetchFromGitHub {
+    owner = "uoaerg";
+    repo = "wavemon";
+    rev = "v${version}";
+    sha256 = "0s3yz15vzx90fxyb8bgryksn0cr2gpz9inbcx4qjrgs7zfbm4pgh";
+  };
+
+  nativeBuildInputs = [
+    pkg-config
+  ];
+
+  buildInputs = [
+    libnl
+    ncurses
+  ];
+
+  meta = with lib; {
+    description = "Ncurses-based monitoring application for wireless network devices";
+    homepage = "https://github.com/uoaerg/wavemon";
+    license = licenses.gpl3Plus;
+    maintainers = with maintainers; [ raskin fpletz ];
+    platforms = platforms.linux;
+  };
+}