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/development/python-modules/sh/disable-broken-tests-darwin.patch

@@ -0,0 +1,48 @@
+From c596ad546fe7460b57a62799837757eb641309c1 Mon Sep 17 00:00:00 2001
+From: Sirio Balmelli <sirio@b-ad.ch>
+Date: Mon, 20 Jul 2020 19:51:20 +0200
+Subject: [PATCH] Disable tests that fail on Darwin (macOS) or with sandboxing
+
+Signed-off-by: Sirio Balmelli <sirio@b-ad.ch>
+--- a/test.py
++++ b/test.py
+@@ -377,6 +377,7 @@ exit(3)
+         self.assertEqual(sed(_in="one test three", e="s/test/two/").strip(),
+                          "one two three")
+ 
++    @not_macos
+     def test_ok_code(self):
+         from sh import ls, ErrorReturnCode_1, ErrorReturnCode_2
+ 
+@@ -982,6 +983,7 @@ print(sys.argv[1])
+         now = time.time()
+         self.assertGreater(now - start, sleep_time)
+ 
++    @not_macos
+     def test_background_exception(self):
+         from sh import ls, ErrorReturnCode_1, ErrorReturnCode_2
+         p = ls("/ofawjeofj", _bg=True, _bg_exc=False)  # should not raise
+@@ -1779,6 +1781,7 @@ exit(49)
+         p = python(py.name, _ok_code=49, _bg=True)
+         self.assertEqual(49, p.exit_code)
+ 
++    @not_macos
+     def test_cwd(self):
+         from sh import pwd
+         from os.path import realpath
+@@ -2777,6 +2780,7 @@ print("cool")
+     # on osx.  so skip it for now if osx
+     @not_macos
+     @requires_progs("lsof")
++    @skipUnless(False, "Flaky on Hydra")
+     def test_no_fd_leak(self):
+         import sh
+         import os
+@@ -2879,6 +2883,7 @@ print("hi")
+         python(py.name, _in=stdin)
+ 
+     @requires_utf8
++    @skipUnless(False, "Does not work in sandbox")
+     def test_unicode_path(self):
+         from sh import Command
+