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>

nixos/tests/sanoid.nix

@@ -0,0 +1,112 @@
+import ./make-test-python.nix ({ pkgs, ... }: let
+  inherit (import ./ssh-keys.nix pkgs)
+    snakeOilPrivateKey snakeOilPublicKey;
+
+  commonConfig = { pkgs, ... }: {
+    virtualisation.emptyDiskImages = [ 2048 ];
+    boot.supportedFilesystems = [ "zfs" ];
+    environment.systemPackages = [ pkgs.parted ];
+  };
+in {
+  name = "sanoid";
+  meta = with pkgs.lib.maintainers; {
+    maintainers = [ lopsided98 ];
+  };
+
+  nodes = {
+    source = { ... }: {
+      imports = [ commonConfig ];
+      networking.hostId = "daa82e91";
+
+      programs.ssh.extraConfig = ''
+        UserKnownHostsFile=/dev/null
+        StrictHostKeyChecking=no
+      '';
+
+      services.sanoid = {
+        enable = true;
+        templates.test = {
+          hourly = 12;
+          daily = 1;
+          monthly = 1;
+          yearly = 1;
+
+          autosnap = true;
+        };
+        datasets."pool/sanoid".use_template = [ "test" ];
+        extraArgs = [ "--verbose" ];
+      };
+
+      services.syncoid = {
+        enable = true;
+        sshKey = "/var/lib/syncoid/id_ecdsa";
+        commands = {
+          # Sync snapshot taken by sanoid
+          "pool/sanoid" = {
+            target = "root@target:pool/sanoid";
+            extraArgs = [ "--no-sync-snap" "--create-bookmark" ];
+          };
+          # Take snapshot and sync
+          "pool/syncoid".target = "root@target:pool/syncoid";
+        };
+      };
+    };
+    target = { ... }: {
+      imports = [ commonConfig ];
+      networking.hostId = "dcf39d36";
+
+      services.openssh.enable = true;
+      users.users.root.openssh.authorizedKeys.keys = [ snakeOilPublicKey ];
+    };
+  };
+
+  testScript = ''
+    source.succeed(
+        "mkdir /mnt",
+        "parted --script /dev/vdb -- mklabel msdos mkpart primary 1024M -1s",
+        "udevadm settle",
+        "zpool create pool -R /mnt /dev/vdb1",
+        "zfs create pool/sanoid",
+        "zfs create pool/syncoid",
+        "udevadm settle",
+    )
+    target.succeed(
+        "mkdir /mnt",
+        "parted --script /dev/vdb -- mklabel msdos mkpart primary 1024M -1s",
+        "udevadm settle",
+        "zpool create pool -R /mnt /dev/vdb1",
+        "udevadm settle",
+    )
+
+    source.succeed(
+        "mkdir -m 700 -p /var/lib/syncoid",
+        "cat '${snakeOilPrivateKey}' > /var/lib/syncoid/id_ecdsa",
+        "chmod 600 /var/lib/syncoid/id_ecdsa",
+        "chown -R syncoid:syncoid /var/lib/syncoid/",
+    )
+
+    assert len(source.succeed("zfs allow pool")) == 0, "Pool shouldn't have delegated permissions set before snapshotting"
+    assert len(source.succeed("zfs allow pool/sanoid")) == 0, "Sanoid dataset shouldn't have delegated permissions set before snapshotting"
+    assert len(source.succeed("zfs allow pool/syncoid")) == 0, "Syncoid dataset shouldn't have delegated permissions set before snapshotting"
+
+    # Take snapshot with sanoid
+    source.succeed("touch /mnt/pool/sanoid/test.txt")
+    source.systemctl("start --wait sanoid.service")
+
+    assert len(source.succeed("zfs allow pool")) == 0, "Pool shouldn't have delegated permissions set after snapshotting"
+    assert len(source.succeed("zfs allow pool/sanoid")) == 0, "Sanoid dataset shouldn't have delegated permissions set after snapshotting"
+    assert len(source.succeed("zfs allow pool/syncoid")) == 0, "Syncoid dataset shouldn't have delegated permissions set after snapshotting"
+
+    # Sync snapshots
+    target.wait_for_open_port(22)
+    source.succeed("touch /mnt/pool/syncoid/test.txt")
+    source.systemctl("start --wait syncoid-pool-sanoid.service")
+    target.succeed("cat /mnt/pool/sanoid/test.txt")
+    source.systemctl("start --wait syncoid-pool-syncoid.service")
+    target.succeed("cat /mnt/pool/syncoid/test.txt")
+
+    assert len(source.succeed("zfs allow pool")) == 0, "Pool shouldn't have delegated permissions set after syncing snapshots"
+    assert len(source.succeed("zfs allow pool/sanoid")) == 0, "Sanoid dataset shouldn't have delegated permissions set after syncing snapshots"
+    assert len(source.succeed("zfs allow pool/syncoid")) == 0, "Syncoid dataset shouldn't have delegated permissions set after syncing snapshots"
+  '';
+})