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/virtualization/umoci/default.nix

@@ -0,0 +1,42 @@
+{ lib
+, fetchFromGitHub
+, buildGoModule
+, go-md2man
+, installShellFiles
+, bash
+}:
+
+buildGoModule rec {
+  pname = "umoci";
+  version = "0.4.7";
+
+  src = fetchFromGitHub {
+    owner = "opencontainers";
+    repo = "umoci";
+    rev = "v${version}";
+    sha256 = "0in8kyi4jprvbm3zsl3risbjj8b0ma62yl3rq8rcvcgypx0mn7d4";
+  };
+
+  vendorSha256 = null;
+
+  doCheck = false;
+
+  ldflags = [ "-s" "-w" "-X main.version=${version}" ];
+
+  nativeBuildInputs = [ go-md2man installShellFiles ];
+
+  postInstall = ''
+    substituteInPlace Makefile --replace \
+      '$(shell which bash)' '${lib.getBin bash}/bin/bash'
+    make docs
+    installManPage doc/man/*.[1-9]
+  '';
+
+  meta = with lib; {
+    description = "umoci modifies Open Container images";
+    homepage = "https://umo.ci";
+    license = licenses.asl20;
+    maintainers = with maintainers; [ zokrezyl ];
+    platforms = platforms.unix;
+  };
+}