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/compilers/ponyc/disable-tests.patch

@@ -0,0 +1,16 @@
+diff --git a/packages/net/_test.pony b/packages/net/_test.pony
+index 9044dfb1..f0ea10f7 100644
+--- a/packages/net/_test.pony
++++ b/packages/net/_test.pony
+@@ -26,11 +26,6 @@ actor \nodoc\ Main is TestList
+       test(_TestTCPThrottle)
+     end
+ 
+-    // Tests below exclude osx and are listed alphabetically
+-    ifdef not osx then
+-      test(_TestBroadcast)
+-    end
+-
+ class \nodoc\ _TestPing is UDPNotify
+   let _h: TestHelper
+   let _ip: NetAddress