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/libraries/libmd/default.nix

@@ -0,0 +1,23 @@
+{ lib, stdenv, fetchurl, autoreconfHook }:
+
+stdenv.mkDerivation rec {
+  pname = "libmd";
+  version = "1.0.4";
+
+  src = fetchurl {
+    url = "https://archive.hadrons.org/software/${pname}/${pname}-${version}.tar.xz";
+    sha256 = "sha256-9RySEELjS+3e3tS3VVdlZVnPWx8kSAM7TB7sEcB+Uw8=";
+  };
+
+  nativeBuildInputs = [ autoreconfHook ];
+
+  meta = with lib; {
+    homepage = "https://www.hadrons.org/software/${pname}/";
+    changelog = "https://archive.hadrons.org/software/libmd/libmd-${version}.announce";
+    # Git: https://git.hadrons.org/cgit/libmd.git
+    description = "Message Digest functions from BSD systems";
+    license = with licenses; [ bsd3 bsd2 isc beerware publicDomain ];
+    maintainers = with maintainers; [ primeos ];
+    platforms = platforms.linux;
+  };
+}