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/zfsbackup/default.nix

@@ -0,0 +1,26 @@
+{ lib, buildGoPackage, fetchFromGitHub }:
+
+buildGoPackage rec {
+  pname = "zfsbackup";
+  version = "unstable-2020-09-30";
+  rev = "092f80846b23e02f99d2aa72d9d889eabfdcb053";
+
+  goPackagePath = "github.com/someone1/zfsbackup-go";
+
+  src = fetchFromGitHub {
+    owner = "someone1";
+    repo = "zfsbackup-go";
+    inherit rev;
+    sha256 = "1xiacaf4r9jkx0m8wjfis14cq622yhljldwkflh9ni3khax7dlgi";
+  };
+
+  goDeps = ./deps.nix;
+
+  meta = with lib; {
+    description = "Backup ZFS snapshots to cloud storage such as Google, Amazon, Azure, etc";
+    homepage = "https://github.com/someone1/zfsbackup-go";
+    license = licenses.mit;
+    maintainers = [ maintainers.xfix ];
+    mainProgram = "zfsbackup-go";
+  };
+}