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/clevis/default.nix

@@ -0,0 +1,41 @@
+{ lib, stdenv, fetchFromGitHub, meson, ninja, pkg-config, asciidoc
+, makeWrapper, jansson, jose, cryptsetup, curl, libpwquality, luksmeta
+, coreutils, tpm2-tools
+}:
+
+stdenv.mkDerivation rec {
+  pname = "clevis";
+  version = "18";
+
+  src = fetchFromGitHub {
+    owner = "latchset";
+    repo = pname;
+    rev = "v${version}";
+    sha256 = "sha256-m1UhyjD5ydSgCTBu6sECLlxFx0rnQxFnBA7frbdUqU8=";
+  };
+
+  postPatch = ''
+    for f in $(find src/ -type f); do
+      grep -q "/bin/cat" "$f" && substituteInPlace "$f" \
+        --replace '/bin/cat' '${coreutils}/bin/cat' || true
+    done
+  '';
+
+  postInstall = ''
+    # We wrap the main clevis binary entrypoint but not the sub-binaries.
+    wrapProgram $out/bin/clevis \
+      --prefix PATH ':' "${tpm2-tools}/bin:${jose}/bin:${placeholder "out"}/bin"
+  '';
+
+  nativeBuildInputs = [ meson ninja pkg-config asciidoc makeWrapper ];
+  buildInputs = [ jansson jose cryptsetup curl libpwquality luksmeta tpm2-tools ];
+
+  outputs = [ "out" "man" ];
+
+  meta = {
+    description = "Automated Encryption Framework";
+    homepage = "https://github.com/latchset/clevis";
+    maintainers = with lib.maintainers; [ fpletz ];
+    license = lib.licenses.gpl3Plus;
+  };
+}