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/servers/etcd/3.4.nix

@@ -0,0 +1,34 @@
+{ lib, buildGoModule, fetchFromGitHub }:
+
+buildGoModule rec {
+  pname = "etcd";
+  version = "3.4.18";
+
+  vendorSha256 = null;
+
+  doCheck = false;
+
+  src = fetchFromGitHub {
+    owner = "etcd-io";
+    repo = "etcd";
+    rev = "v${version}";
+    sha256 = "sha256-/bXcW5g8mNFEjvfg+1loLFi8+IaWdcTE/lUPsHzEaIo=";
+  };
+
+  buildPhase = ''
+    patchShebangs .
+    ./build
+    ./functional/build
+  '';
+
+  installPhase = ''
+    install -Dm755 bin/* bin/functional/cmd/* -t $out/bin
+  '';
+
+  meta = with lib; {
+    description = "Distributed reliable key-value store for the most critical data of a distributed system";
+    license = licenses.asl20;
+    homepage = "https://etcd.io/";
+    maintainers = with maintainers; [ offline zowoq ];
+  };
+}