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/shells/mksh/default.nix

@@ -0,0 +1,60 @@
+{ lib
+, stdenv
+, fetchurl
+, installShellFiles
+}:
+
+stdenv.mkDerivation rec {
+  pname = "mksh";
+  version = "59c";
+
+  src = fetchurl {
+    urls = [
+      "http://www.mirbsd.org/MirOS/dist/mir/mksh/${pname}-R${version}.tgz"
+      "http://pub.allbsd.org/MirOS/dist/mir/mksh/${pname}-R${version}.tgz"
+    ];
+    hash = "sha256-d64WZaM38cSMYda5Yds+UhGbOOWIhNHIloSvMfh7xQY=";
+  };
+
+  strictDeps = true;
+  nativeBuildInputs = [
+    installShellFiles
+  ];
+
+  dontConfigure = true;
+
+  buildPhase = ''
+    runHook preBuild
+    sh ./Build.sh -r
+    runHook postBuild
+  '';
+
+  installPhase = ''
+    runHook preInstall
+    install -D mksh $out/bin/mksh
+    install -D dot.mkshrc $out/share/mksh/mkshrc
+    installManPage mksh.1
+    runHook postInstall
+  '';
+
+  meta = with lib; {
+    homepage = "http://www.mirbsd.org/mksh.htm";
+    description = "MirBSD Korn Shell";
+    longDescription = ''
+      The MirBSD Korn Shell is a DFSG-free and OSD-compliant (and OSI
+      approved) successor to pdksh, developed as part of the MirOS
+      Project as native Bourne/POSIX/Korn shell for MirOS BSD, but
+      also to be readily available under other UNIX(R)-like operating
+      systems.
+    '';
+    license = with licenses; [ miros isc unicode-dfs-2016 ];
+    maintainers = with maintainers; [ AndersonTorres joachifm ];
+    platforms = platforms.unix;
+  };
+
+  passthru = {
+    shellPath = "/bin/mksh";
+  };
+}
+# TODO [ AndersonTorres ]: lksh
+# TODO [ AndersonTorres ]: a more accurate licensing info