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>

.gitignore

@@ -0,0 +1,29 @@
+*~
+,*
+.*.swp
+.*.swo
+.idea/
+.vscode/
+outputs/
+result
+result-*
+source/
+/doc/NEWS.html
+/doc/NEWS.txt
+/doc/manual.html
+/doc/manual.pdf
+.version-suffix
+
+.DS_Store
+.mypy_cache
+__pycache__
+
+/pkgs/development/libraries/qt-5/*/tmp/
+/pkgs/desktops/kde-5/*/tmp/
+/pkgs/development/mobile/androidenv/xml/*
+
+# generated by pkgs/common-updater/update-script.nix
+update-git-commits.txt
+
+# JetBrains IDEA module declaration file
+/nixpkgs.iml