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/development/python-modules/logster/default.nix

@@ -0,0 +1,21 @@
+{ lib, buildPythonPackage, fetchFromGitHub, pygtail }:
+
+buildPythonPackage rec {
+  pname = "logster";
+  version = "1.0.1";
+
+  src = fetchFromGitHub {
+    owner = "etsy";
+    repo = pname;
+    rev = version;
+    sha256 = "06ac5hydas24h2cn8l5i69v1z0min5hwh6a1lcm1b08xnvpsi85q";
+  };
+
+  propagatedBuildInputs = [ pygtail ];
+
+  meta = with lib; {
+    description = "Parses log files, generates metrics for Graphite and Ganglia";
+    license = licenses.gpl3Plus;
+    homepage = "https://github.com/etsy/logster";
+  };
+}