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/rasdaemon.nix

@@ -0,0 +1,34 @@
+import ./make-test-python.nix ({ pkgs, ... } : {
+  name = "rasdaemon";
+  meta = with pkgs.lib.maintainers; {
+    maintainers = [ evils ];
+  };
+
+  nodes.machine = { pkgs, ... }: {
+    imports = [ ../modules/profiles/minimal.nix ];
+    hardware.rasdaemon = {
+      enable = true;
+      # should be enabled by default, just making sure
+      record = true;
+      # nonsense label
+      labels = ''
+        vendor: none
+          product: none
+          model: none
+            DIMM_0: 0.0.0;
+      '';
+    };
+  };
+
+  testScript =
+    ''
+      start_all()
+      machine.wait_for_unit("multi-user.target")
+      # confirm rasdaemon is running and has a valid database
+      # some disk errors detected in qemu for some reason ¯\_(ツ)_/¯
+      machine.succeed("ras-mc-ctl --errors | tee /dev/stderr | grep -q 'No .* errors.'")
+      # confirm the supplied labels text made it into the system
+      machine.succeed("grep -q 'vendor: none' /etc/ras/dimm_labels.d/labels >&2")
+      machine.shutdown()
+    '';
+})