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/go/skip-nohup-tests.patch

@@ -0,0 +1,22 @@
+diff --git a/src/os/signal/signal_test.go b/src/os/signal/signal_test.go
+index 3d79c7a..6e0f7b4 100644
+--- a/src/os/signal/signal_test.go
++++ b/src/os/signal/signal_test.go
+@@ -217,6 +217,8 @@ var checkSighupIgnored = flag.Bool("check_sighup_ignored", false, "if true, Test
+ 
+ // Test that Ignored(SIGHUP) correctly detects whether it is being run under nohup.
+ func TestDetectNohup(t *testing.T) {
++	t.Skip("Fails in nix build environment")
++
+ 	if *checkSighupIgnored {
+ 		if !Ignored(syscall.SIGHUP) {
+ 			t.Fatal("SIGHUP is not ignored.")
+@@ -306,6 +308,8 @@ func TestStop(t *testing.T) {
+ // Test that when run under nohup, an uncaught SIGHUP does not kill the program,
+ // but a
+ func TestNohup(t *testing.T) {
++	t.Skip("Fails in nix build environment")
++
+ 	// Ugly: ask for SIGHUP so that child will not have no-hup set
+ 	// even if test is running under nohup environment.
+ 	// We have no intention of reading from c.