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/security/pius/default.nix

@@ -0,0 +1,41 @@
+{ fetchFromGitHub, lib, python3Packages, gnupg, perl }:
+
+let version = "3.0.0"; in
+python3Packages.buildPythonApplication {
+  pname = "pius";
+  namePrefix = "";
+  inherit version;
+
+  src = fetchFromGitHub {
+    owner = "jaymzh";
+    repo = "pius";
+    rev = "v${version}";
+    sha256 = "0l87dx7n6iwy8alxnhvval8h1kl4da6a59hsilbi65c6bpj4dh3y";
+  };
+
+  patchPhase = ''
+    for file in libpius/constants.py pius-keyring-mgr; do
+      sed -i "$file" -E -e's|/usr/bin/gpg2?|${gnupg}/bin/gpg|g'
+    done
+  '';
+
+  buildInputs = [ perl ];
+
+  meta = {
+    homepage = "https://www.phildev.net/pius/";
+
+    description = "PGP Individual UID Signer (PIUS), quickly and easily sign UIDs on a set of PGP keys";
+
+    longDescription =
+      '' This software will allow you to quickly and easily sign each UID on
+         a set of PGP keys.  It is designed to take the pain out of the
+         sign-all-the-keys part of PGP Keysigning Party while adding security
+         to the process.
+      '';
+
+    license = lib.licenses.gpl2;
+
+    platforms = lib.platforms.gnu ++ lib.platforms.linux;
+    maintainers = with lib.maintainers; [ kierdavis ];
+  };
+}