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>

pkgs/os-specific/linux/s6-linux-init/default.nix

@@ -0,0 +1,39 @@
+{ lib, skawarePackages }:
+
+with skawarePackages;
+
+buildPackage {
+  pname = "s6-linux-init";
+  version = "1.0.7.3";
+  sha256 = "sha256-yQblfr/jANwXz7+5wlSvWZaHYt/RYr/gZLTOK9aVp3Y=";
+
+  description = "A set of minimalistic tools used to create a s6-based init system, including a /sbin/init binary, on a Linux kernel";
+  platforms = lib.platforms.linux;
+
+  outputs = [ "bin" "dev" "doc" "out" ];
+
+  configureFlags = [
+    "--bindir=\${bin}/bin"
+    "--includedir=\${dev}/include"
+    "--with-sysdeps=${skalibs.lib}/lib/skalibs/sysdeps"
+    "--with-include=${skalibs.dev}/include"
+    "--with-include=${execline.dev}/include"
+    "--with-include=${s6.dev}/include"
+    "--with-lib=${skalibs.lib}/lib"
+    "--with-lib=${s6.out}/lib"
+    "--with-lib=${execline.lib}/lib"
+    "--with-dynlib=${skalibs.lib}/lib"
+    "--with-dynlib=${execline.lib}/lib"
+    "--with-dynlib=${s6.out}/lib"
+  ];
+
+  postInstall = ''
+    # remove all s6 executables from build directory
+    rm $(find -name "s6-*" -type f -mindepth 1 -maxdepth 1 -executable)
+    rm libs6_linux_init.* libhpr.*
+    rm -rf skel
+
+    mv doc $doc/share/doc/s6-linux-init/html
+  '';
+
+}