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/interpreters/python/hooks/setuptools-build-hook.sh

@@ -0,0 +1,58 @@
+# Setup hook for setuptools.
+echo "Sourcing setuptools-build-hook"
+
+setuptoolsBuildPhase() {
+    echo "Executing setuptoolsBuildPhase"
+    local args
+    runHook preBuild
+
+    cp -f @setuppy@ nix_run_setup
+    args=""
+    if [ -n "$setupPyGlobalFlags" ]; then
+        args+="$setupPyGlobalFlags"
+    fi
+    if [ -n "$enableParallelBuilding" ]; then
+        setupPyBuildFlags+=" --parallel $NIX_BUILD_CORES"
+    fi
+    if [ -n "$setupPyBuildFlags" ]; then
+        args+=" build_ext $setupPyBuildFlags"
+    fi
+    eval "@pythonInterpreter@ nix_run_setup $args bdist_wheel"
+
+    runHook postBuild
+    echo "Finished executing setuptoolsBuildPhase"
+}
+
+setuptoolsShellHook() {
+    echo "Executing setuptoolsShellHook"
+    runHook preShellHook
+
+    if test -e setup.py; then
+        tmp_path=$(mktemp -d)
+        export PATH="$tmp_path/bin:$PATH"
+        export PYTHONPATH="$tmp_path/@pythonSitePackages@:$PYTHONPATH"
+        mkdir -p "$tmp_path/@pythonSitePackages@"
+        eval "@pythonInterpreter@ -m pip install -e . --prefix $tmp_path \
+          --no-build-isolation >&2"
+
+        # Process pth file installed in tmp path. This allows one to
+        # actually import the editable installation. Note site.addsitedir
+        # appends, not prepends, new paths. Hence, it is not possible to override
+        # an existing installation of the package.
+        # https://github.com/pypa/setuptools/issues/2612
+        export NIX_PYTHONPATH="$tmp_path/@pythonSitePackages@:${NIX_PYTHONPATH-}"
+    fi
+
+    runHook postShellHook
+    echo "Finished executing setuptoolsShellHook"
+}
+
+if [ -z "${dontUseSetuptoolsBuild-}" ] && [ -z "${buildPhase-}" ]; then
+    echo "Using setuptoolsBuildPhase"
+    buildPhase=setuptoolsBuildPhase
+fi
+
+if [ -z "${dontUseSetuptoolsShellHook-}" ] && [ -z "${shellHook-}" ]; then
+    echo "Using setuptoolsShellHook"
+    shellHook=setuptoolsShellHook
+fi