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/misc/fsmon/default.nix

@@ -0,0 +1,25 @@
+{ lib, stdenv, fetchFromGitHub }:
+
+stdenv.mkDerivation rec {
+  pname = "fsmon";
+  version = "1.8.4";
+
+  src = fetchFromGitHub {
+    owner = "nowsecure";
+    repo = "fsmon";
+    rev = version;
+    sha256 = "sha256-4KF8h+YdCMrF9Yk/9y71WqNjzyoEZnddriDZAdpIaa4=";
+  };
+
+  installPhase = ''
+    make install PREFIX=$out
+  '';
+
+  meta = with lib; {
+    description = "FileSystem Monitor utility";
+    homepage = "https://github.com/nowsecure/fsmon";
+    license = licenses.mit;
+    maintainers = [ maintainers.dezgeg ];
+    platforms = platforms.linux;
+  };
+}