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/doc/manual/configuration/profiles/installation-device.section.md

@@ -0,0 +1,24 @@
+# Installation Device {#sec-profile-installation-device}
+
+Provides a basic configuration for installation devices like CDs.
+This enables redistributable firmware, includes the
+[Clone Config profile](#sec-profile-clone-config)
+and a copy of the Nixpkgs channel, so `nixos-install`
+works out of the box.
+
+Documentation for [Nixpkgs](#opt-documentation.enable)
+and [NixOS](#opt-documentation.nixos.enable) are
+forcefully enabled (to override the
+[Minimal profile](#sec-profile-minimal) preference); the
+NixOS manual is shown automatically on TTY 8, udisks is disabled.
+Autologin is enabled as `nixos` user, while passwordless
+login as both `root` and `nixos` is possible.
+Passwordless `sudo` is enabled too.
+[wpa_supplicant](#opt-networking.wireless.enable) is
+enabled, but configured to not autostart.
+
+It is explained how to login, start the ssh server, and if available,
+how to start the display manager.
+
+Several settings are tweaked so that the installer has a better chance of
+succeeding under low-memory environments.