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/tools/security/credential-detector/default.nix

@@ -0,0 +1,25 @@
+{ lib
+, buildGoModule
+, fetchFromGitHub
+}:
+
+buildGoModule rec {
+  pname = "credential-detector";
+  version = "1.7.0";
+
+  src = fetchFromGitHub {
+    owner = "ynori7";
+    repo = pname;
+    rev = "v${version}";
+    sha256 = "1g5ja32rsf1b7y9gvmy29qz2ymyyvgh53wzd6vvknfla1df0slab";
+  };
+
+  vendorSha256 = "1mn3sysvdz4b94804gns1yssk2q08djq3kq3cd1h7gm942zwrnq4";
+
+  meta = with lib; {
+    description = "Tool to detect potentially hard-coded credentials";
+    homepage = "https://github.com/ynori7/credential-detector";
+    license = licenses.mit;
+    maintainers = with maintainers; [ fab ];
+  };
+}