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/misc/odroid-xu3-bootloader/default.nix

@@ -0,0 +1,35 @@
+{ stdenv, lib, fetchFromGitHub, coreutils, ubootOdroidXU3, runtimeShell }:
+
+stdenv.mkDerivation {
+  pname = "odroid-xu3-bootloader";
+  version = "unstable-2015-12-04";
+
+  src = fetchFromGitHub {
+    owner = "hardkernel";
+    repo = "u-boot";
+    rev = "fe2f831fd44a4071f58a42f260164544697aa666";
+    sha256 = "1h5yvawzla0vqhkk98gxcwc824bhc936bh6j77qkyspvqcw761fr";
+  };
+
+  buildCommand = ''
+    install -Dm644 -t $out/lib/sd_fuse-xu3 $src/sd_fuse/hardkernel_1mb_uboot/{bl2,tzsw}.*
+    install -Dm644 -t $out/lib/sd_fuse-xu3 $src/sd_fuse/hardkernel/bl1.*
+    ln -sf ${ubootOdroidXU3}/u-boot-dtb.bin $out/lib/sd_fuse-xu3/u-boot-dtb.bin
+
+    install -Dm755 $src/sd_fuse/hardkernel_1mb_uboot/sd_fusing.1M.sh $out/bin/sd_fuse-xu3
+    sed -i \
+      -e '1i#!${runtimeShell}' \
+      -e '1iPATH=${lib.makeBinPath [ coreutils ]}:$PATH' \
+      -e '/set -x/d' \
+      -e 's,.\/sd_fusing\.sh,sd_fuse-xu3,g' \
+      -e "s,\./,$out/lib/sd_fuse-xu3/,g" \
+      $out/bin/sd_fuse-xu3
+  '';
+
+  meta = with lib; {
+    platforms = platforms.linux;
+    license = licenses.unfreeRedistributableFirmware;
+    description = "Secure boot enabled boot loader for ODROID-XU{3,4}";
+    maintainers = with maintainers; [ abbradar ];
+  };
+}