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/applications/networking/ipfs-migrator/unwrapped.nix

@@ -0,0 +1,35 @@
+{ lib
+, buildGoModule
+, fetchFromGitHub
+}:
+
+buildGoModule rec {
+  pname = "ipfs-migrator";
+  version = "2.0.2";
+
+  src = fetchFromGitHub {
+    owner = "ipfs";
+    repo = "fs-repo-migrations";
+    # Use the latest git tag here, since v2.0.2 does not
+    # contain the latest migration fs-repo-11-to-12/v1.0.2
+    # The fs-repo-migrations code itself is the same between
+    # the two versions but the migration code, which is built
+    # into separate binaries, is not.
+    rev = "fs-repo-11-to-12/v1.0.2";
+    sha256 = "sha256-CG4utwH+/+Igw+SP3imhl39wijlB53UGtkJG5Mwh+Ik=";
+  };
+
+  sourceRoot = "source/fs-repo-migrations";
+
+  vendorSha256 = "sha256-/DqkBBtR/nU8gk3TFqNKY5zQU6BFMc3N8Ti+38mi/jk=";
+
+  doCheck = false;
+
+  meta = with lib; {
+    description = "Migrations for the filesystem repository of ipfs clients";
+    homepage = "https://github.com/ipfs/fs-repo-migrations";
+    license = licenses.mit;
+    maintainers = with maintainers; [ Luflosi elitak ];
+    mainProgram = "fs-repo-migrations";
+  };
+}