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/os-specific/linux/fscrypt/default.nix

@@ -0,0 +1,55 @@
+{ lib, buildGoModule, fetchFromGitHub, gnum4, pam, fscrypt-experimental }:
+
+# Don't use this for anything important yet!
+
+buildGoModule rec {
+  pname = "fscrypt";
+  version = "0.3.3";
+
+  src = fetchFromGitHub {
+    owner = "google";
+    repo = "fscrypt";
+    rev = "v${version}";
+    hash = "sha256-kkcZuX8tB7N8l9O3X6H92EqEqdAcqSbX+pwr7GrcRFY=";
+  };
+
+  postPatch = ''
+    substituteInPlace Makefile \
+      --replace 'TAG_VERSION := $(shell git describe --tags)' "" \
+      --replace "/usr/local" "$out"
+  '';
+
+  vendorSha256 = "sha256-6zcHz7ePJFSxxfIlhVK2VEf6+soBoUInT9ZsZK/Ag78=";
+
+  doCheck = false;
+
+  nativeBuildInputs = [ gnum4 ];
+  buildInputs = [ pam ];
+
+  buildPhase = ''
+    runHook preBuild
+    make
+    runHook postBuild
+  '';
+
+  installPhase = ''
+    runHook preInstall
+    make install
+    runHook postInstall
+  '';
+
+  meta = with lib; {
+    description =
+      "A high-level tool for the management of Linux filesystem encryption";
+    longDescription = ''
+      This tool manages metadata, key generation, key wrapping, PAM integration,
+      and provides a uniform interface for creating and modifying encrypted
+      directories.
+    '';
+    inherit (src.meta) homepage;
+    changelog = "https://github.com/google/fscrypt/releases/tag/v${version}";
+    license = licenses.asl20;
+    platforms = platforms.linux;
+    maintainers = with maintainers; [ primeos ];
+  };
+}