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/pam_mount/default.nix

@@ -0,0 +1,46 @@
+{ lib, stdenv, fetchurl, autoreconfHook, pkg-config, libtool, pam, libHX, libxml2, pcre, perl, openssl, cryptsetup, util-linux }:
+
+stdenv.mkDerivation rec {
+  pname = "pam_mount";
+  version = "2.17";
+
+  src = fetchurl {
+    url = "mirror://sourceforge/pam-mount/pam_mount/${pname}-${version}.tar.xz";
+    sha256 = "1q2n6a2ah6nghdn8i6ad2wj247njwb5nx48cggxknaa6lqxylidy";
+  };
+
+  patches = [
+    ./insert_utillinux_path_hooks.patch
+  ];
+
+  postPatch = ''
+    substituteInPlace src/mtcrypt.c \
+      --replace @@NIX_UTILLINUX@@ ${util-linux}/bin
+  '';
+
+  nativeBuildInputs = [ autoreconfHook libtool pkg-config ];
+
+  buildInputs = [ pam libHX util-linux libxml2 pcre perl openssl cryptsetup ];
+
+  enableParallelBuilding = true;
+
+  configureFlags = [
+    "--prefix=${placeholder "out"}"
+    "--localstatedir=${placeholder "out"}/var"
+    "--sbindir=${placeholder "out"}/bin"
+    "--sysconfdir=${placeholder "out"}/etc"
+    "--with-slibdir=${placeholder "out"}/lib"
+  ];
+
+  postInstall = ''
+    rm -r $out/var
+  '';
+
+  meta = with lib; {
+    description = "PAM module to mount volumes for a user session";
+    homepage = "https://pam-mount.sourceforge.net/";
+    license = with licenses; [ gpl2 gpl3 lgpl21 lgpl3 ];
+    maintainers = with maintainers; [ tstrobel ];
+    platforms = platforms.linux;
+  };
+}