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/pass/extensions/update.nix

@@ -0,0 +1,30 @@
+{ lib, stdenv, fetchFromGitHub }:
+
+stdenv.mkDerivation rec {
+  pname = "pass-update";
+  version = "2.1";
+
+  src = fetchFromGitHub {
+    owner = "roddhjav";
+    repo = "pass-update";
+    rev = "v${version}";
+    sha256 = "0yx8w97jcp6lv7ad5jxqnj04csbrn2hhc4pskssxknw2sbvg4g6c";
+  };
+
+  postPatch = ''
+    substituteInPlace Makefile \
+      --replace "BASHCOMPDIR ?= /etc/bash_completion.d" "BASHCOMPDIR ?= $out/share/bash-completion/completions"
+  '';
+
+  dontBuild = true;
+
+  installFlags = [ "PREFIX=$(out)" ];
+
+  meta = with lib; {
+    description = "Pass extension that provides an easy flow for updating passwords";
+    homepage = "https://github.com/roddhjav/pass-update";
+    license = licenses.gpl3Plus;
+    maintainers = with maintainers; [ lovek323 fpletz tadfisher ];
+    platforms = platforms.unix;
+  };
+}