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/asyncssh/fix-sftp-chmod-test-nixos.patch

@@ -0,0 +1,15 @@
+diff --git a/tests/test_sftp.py b/tests/test_sftp.py
+index d94379f..4ee46a9 100644
+--- a/tests/test_sftp.py
++++ b/tests/test_sftp.py
+@@ -955,8 +955,8 @@ class _TestSFTP(_CheckSFTP):
+ 
+         try:
+             self._create_file('file')
+-            await sftp.chmod('file', 0o4321)
+-            self.assertEqual(stat.S_IMODE(os.stat('file').st_mode), 0o4321)
++            await sftp.chmod('file', 0o1234)
++            self.assertEqual(stat.S_IMODE(os.stat('file').st_mode), 0o1234)
+         finally:
+             remove('file')
+