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/graphics/exif/default.nix

@@ -0,0 +1,45 @@
+{ lib
+, stdenv
+, fetchFromGitHub
+, fetchpatch
+, autoreconfHook
+, pkg-config
+, libexif
+, popt
+, libintl
+}:
+
+stdenv.mkDerivation rec {
+  pname = "exif";
+  version = "0.6.22";
+
+  src = fetchFromGitHub {
+    owner = "libexif";
+    repo = pname;
+    rev = "${pname}-${builtins.replaceStrings ["."] ["_"] version}-release";
+    sha256 = "1xlb1gdwxm3rmw7vlrynhvjp9dkwmvw23mxisdbdmma7ah2nda3i";
+  };
+
+  patches = [
+    (fetchpatch {
+      name = "CVE-2021-27815.part-1.patch";
+      url = "https://github.com/libexif/exif/commit/f6334d9d32437ef13dc902f0a88a2be0063d9d1c.patch";
+      sha256 = "0mfx7l8w3w1c2mn5h5d6s7gdfyd91wnml8v0f19v5sdn70hx5aa4";
+    })
+    (fetchpatch {
+      name = "CVE-2021-27815.part-2.patch";
+      url = "https://github.com/libexif/exif/commit/eb84b0e3c5f2a86013b6fcfb800d187896a648fa.patch";
+      sha256 = "11lyvy20maisiyhxgxvm85v5l5ba7p0bpd4m0g4ryli32mrwwy0l";
+    })
+  ];
+
+  nativeBuildInputs = [ autoreconfHook pkg-config ];
+  buildInputs = [ libexif popt libintl ];
+
+  meta = with lib; {
+    homepage = "https://libexif.github.io";
+    description = "A utility to read and manipulate EXIF data in digital photographs";
+    platforms = platforms.unix;
+    license = licenses.lgpl21Plus;
+  };
+}