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/backup/wal-g/default.nix

@@ -0,0 +1,39 @@
+{ lib, buildGoModule, fetchFromGitHub, brotli, libsodium, installShellFiles }:
+
+buildGoModule rec {
+  pname = "wal-g";
+  version = "2.0.0";
+
+  src = fetchFromGitHub {
+    owner = "wal-g";
+    repo = "wal-g";
+    rev = "v${version}";
+    sha256 = "sha256-xltKchk7RtP5tkoUhnJqVb17WW6qW/lSFdHivCbW5zY=";
+  };
+
+  vendorSha256 = "sha256-w9AVcld8Gd1kYE2PkN8RVZ+/xlOZChKoWZFKvqhJuWI=";
+
+  nativeBuildInputs = [ installShellFiles ];
+
+  buildInputs = [ brotli libsodium ];
+
+  subPackages = [ "main/pg" ];
+
+  tags = [ "brotli" "libsodium" ];
+
+  ldflags = [ "-s" "-w" "-X github.com/wal-g/wal-g/cmd/pg.WalgVersion=${version}" "-X github.com/wal-g/wal-g/cmd/pg.GitRevision=${src.rev}" ];
+
+  postInstall = ''
+    mv $out/bin/pg $out/bin/wal-g
+    installShellCompletion --cmd wal-g \
+      --bash <($out/bin/wal-g completion bash) \
+      --zsh <($out/bin/wal-g completion zsh)
+  '';
+
+  meta = with lib; {
+    homepage = "https://github.com/wal-g/wal-g";
+    license = licenses.asl20;
+    description = "An archival restoration tool for PostgreSQL";
+    maintainers = with maintainers; [ marsam ];
+  };
+}