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/ksh/default.nix

@@ -0,0 +1,45 @@
+{ lib, stdenv, meson, ninja, fetchFromGitHub, which, python3, fetchpatch
+, libiconv }:
+
+stdenv.mkDerivation rec {
+  pname = "ksh";
+  version = "2020.0.0";
+
+  src = fetchFromGitHub {
+    owner  = "att";
+    repo   = "ast";
+    rev    = version;
+    sha256 = "0cdxz0nhpq03gb9rd76fn0x1yzs2c8q289b7vcxnzlsrz1imz65j";
+  };
+
+  patches = [
+    (fetchpatch {
+      url = "https://github.com/att/ast/commit/11983a71f5e29df578b7e2184400728b4e3f451d.patch";
+      sha256 = "1n9558c4v2qpgpjb1vafs29n3qn3z0770wr1ayc0xjf5z5j4g3kv";
+    })
+  ];
+
+  nativeBuildInputs = [ meson ninja which python3 ];
+
+  buildInputs = [ libiconv ];
+
+  strictDeps = true;
+
+  meta = with lib; {
+    description = "KornShell Command And Programming Language";
+    longDescription = ''
+      The KornShell language was designed and developed by David G. Korn at
+      AT&T Bell Laboratories. It is an interactive command language that
+      provides access to the UNIX system and to many other systems, on the
+      many different computers and workstations on which it is implemented.
+    '';
+    homepage = "https://github.com/att/ast";
+    license = licenses.cpl10;
+    maintainers = with maintainers; [ ];
+    platforms = platforms.all;
+  };
+
+  passthru = {
+    shellPath = "/bin/ksh";
+  };
+}