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/modules/services/network-filesystems/litestream/litestream.xml

@@ -0,0 +1,65 @@
+<chapter xmlns="http://docbook.org/ns/docbook"
+         xmlns:xlink="http://www.w3.org/1999/xlink"
+         xmlns:xi="http://www.w3.org/2001/XInclude"
+         version="5.0"
+         xml:id="module-services-litestream">
+ <title>Litestream</title>
+ <para>
+  <link xlink:href="https://litestream.io/">Litestream</link> is a standalone streaming
+  replication tool for SQLite.
+ </para>
+
+ <section xml:id="module-services-litestream-configuration">
+  <title>Configuration</title>
+
+  <para>
+   Litestream service is managed by a dedicated user named <literal>litestream</literal>
+   which needs permission to the database file. Here's an example config which gives
+   required permissions to access <link linkend="opt-services.grafana.database.path">
+   grafana database</link>:
+<programlisting>
+{ pkgs, ... }:
+{
+  users.users.litestream.extraGroups = [ "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.litestream = {
+    enable = true;
+
+    environmentFile = "/run/secrets/litestream";
+
+    settings = {
+      dbs = [
+        {
+          path = "/var/lib/grafana/data/grafana.db";
+          replicas = [{
+            url = "s3://mybkt.litestream.io/grafana";
+          }];
+        }
+      ];
+    };
+  };
+}
+</programlisting>
+  </para>
+ </section>
+
+</chapter>