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/litestream.nix

@@ -0,0 +1,93 @@
+import ./make-test-python.nix ({ pkgs, ...} : {
+  name = "litestream";
+  meta = with pkgs.lib.maintainers; {
+    maintainers = [ jwygoda ];
+  };
+
+  nodes.machine =
+    { pkgs, ... }:
+    { services.litestream = {
+        enable = true;
+        settings = {
+          dbs = [
+            {
+              path = "/var/lib/grafana/data/grafana.db";
+              replicas = [{
+                url = "sftp://foo:bar@127.0.0.1:22/home/foo/grafana";
+              }];
+            }
+          ];
+        };
+      };
+      systemd.services.grafana.serviceConfig.ExecStartPost = "+" + pkgs.writeShellScript "grant-grafana-permissions" ''
+        timeout=10
+
+        while [ ! -f /var/lib/grafana/data/grafana.db ];
+        do
+          if [ "$timeout" == 0 ]; then
+            echo "ERROR: Timeout while waiting for /var/lib/grafana/data/grafana.db."
+            exit 1
+          fi
+
+          sleep 1
+
+          ((timeout--))
+        done
+
+        find /var/lib/grafana -type d -exec chmod -v 775 {} \;
+        find /var/lib/grafana -type f -exec chmod -v 660 {} \;
+      '';
+      services.openssh = {
+        enable = true;
+        allowSFTP = true;
+        listenAddresses = [ { addr = "127.0.0.1"; port = 22; } ];
+      };
+      services.grafana = {
+        enable = true;
+        security = {
+          adminUser = "admin";
+          adminPassword = "admin";
+        };
+        addr = "localhost";
+        port = 3000;
+        extraOptions = {
+          DATABASE_URL = "sqlite3:///var/lib/grafana/data/grafana.db?cache=private&mode=rwc&_journal_mode=WAL";
+        };
+      };
+      users.users.foo = {
+        isNormalUser = true;
+        password = "bar";
+      };
+      users.users.litestream.extraGroups = [ "grafana" ];
+    };
+
+  testScript = ''
+    start_all()
+    machine.wait_until_succeeds("test -d /home/foo/grafana")
+    machine.wait_for_open_port(3000)
+    machine.succeed("""
+        curl -sSfN -X PUT -H "Content-Type: application/json" -d '{
+          "oldPassword": "admin",
+          "newPassword": "newpass",
+          "confirmNew": "newpass"
+        }' http://admin:admin@127.0.0.1:3000/api/user/password
+    """)
+    # https://litestream.io/guides/systemd/#simulating-a-disaster
+    machine.systemctl("stop litestream.service")
+    machine.succeed(
+        "rm -f /var/lib/grafana/data/grafana.db "
+        "/var/lib/grafana/data/grafana.db-shm "
+        "/var/lib/grafana/data/grafana.db-wal"
+    )
+    machine.succeed(
+        "litestream restore /var/lib/grafana/data/grafana.db "
+        "&& chown grafana:grafana /var/lib/grafana/data/grafana.db "
+        "&& chmod 660 /var/lib/grafana/data/grafana.db"
+    )
+    machine.systemctl("restart grafana.service")
+    machine.wait_for_open_port(3000)
+    machine.succeed(
+        "curl -sSfN -u admin:newpass http://127.0.0.1:3000/api/org/users | grep admin\@localhost"
+    )
+  '';
+})