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/data/misc/fedora-backgrounds/generic.nix

@@ -0,0 +1,43 @@
+{ lib
+, stdenvNoCC
+, coreutils
+}:
+
+{ version
+, src
+, patches ? [ ]
+}:
+
+stdenvNoCC.mkDerivation {
+  inherit patches src version;
+
+  pname = "fedora${lib.versions.major version}-backgrounds";
+
+  dontBuild = true;
+
+  postPatch = ''
+    for f in default/Makefile extras/Makefile; do
+      substituteInPlace $f \
+        --replace "usr/share" "share" \
+        --replace "/usr/bin/" "" \
+        --replace "/bin/" ""
+    done
+
+    for f in $(find . -name '*.xml'); do
+      substituteInPlace $f \
+        --replace "/usr/share" "$out/share"
+    done;
+  '';
+
+  installFlags = [
+    "DESTDIR=$(out)"
+  ];
+
+  meta = with lib; {
+    homepage = "https://github.com/fedoradesign/backgrounds";
+    description = "A set of default and supplemental wallpapers for Fedora";
+    license = licenses.cc-by-sa-40;
+    platforms = platforms.unix;
+    maintainers = with maintainers; [ ];
+  };
+}