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/tools/kubepug/skip-external-network-tests.patch

@@ -0,0 +1,12 @@
+diff --git a/pkg/utils/downloader_test.go b/pkg/utils/downloader_test.go
+index b227760..b72dee9 100644
+--- a/pkg/utils/downloader_test.go
++++ b/pkg/utils/downloader_test.go
+@@ -7,6 +7,7 @@ import (
+ )
+ 
+ func TestDownloadSwaggerFile(t *testing.T) {
++    t.Skipf("Nix sandbox does not have networking")
+ 	var tmpdir string
+ 	// Github actions does not have a temporary dir :/
+ 	tmpdir = os.Getenv("RUNNER_TEMP")