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/buf/skip_test_requiring_dotgit.patch

@@ -0,0 +1,14 @@
+diff --git a/private/buf/cmd/buf/workspace_test.go b/private/buf/cmd/buf/workspace_test.go
+index 25e33dd..f593beb 100644
+--- a/private/buf/cmd/buf/workspace_test.go
++++ b/private/buf/cmd/buf/workspace_test.go
+@@ -340,6 +340,9 @@ func TestWorkspaceNestedArchive(t *testing.T) {
+ }
+ 
+ func TestWorkspaceGit(t *testing.T) {
++	// Requires .git directory which we do not retain due to
++	// `leaveDotGit` non-determinism
++	t.Skip()
+ 	t.Skip("skip until the move to private/buf is merged")
+ 	// Directory paths specified as a git reference within a workspace.
+ 	t.Parallel()