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/build-support/rust/hooks/cargo-install-hook.sh

@@ -0,0 +1,49 @@
+cargoInstallPostBuildHook() {
+    echo "Executing cargoInstallPostBuildHook"
+
+    releaseDir=target/@shortTarget@/$cargoBuildType
+    tmpDir="${releaseDir}-tmp";
+
+    mkdir -p $tmpDir
+    cp -r ${releaseDir}/* $tmpDir/
+    bins=$(find $tmpDir \
+      -maxdepth 1 \
+      -type f \
+      -executable ! \( -regex ".*\.\(so.[0-9.]+\|so\|a\|dylib\)" \))
+
+    echo "Finished cargoInstallPostBuildHook"
+}
+
+cargoInstallHook() {
+    echo "Executing cargoInstallHook"
+
+    runHook preInstall
+
+    # rename the output dir to a architecture independent one
+
+    releaseDir=target/@shortTarget@/$cargoBuildType
+    tmpDir="${releaseDir}-tmp";
+
+    mapfile -t targets < <(find "$NIX_BUILD_TOP" -type d | grep "${tmpDir}$")
+    for target in "${targets[@]}"; do
+      rm -rf "$target/../../${cargoBuildType}"
+      ln -srf "$target" "$target/../../"
+    done
+    mkdir -p $out/bin $out/lib
+
+    xargs -r cp -t $out/bin <<< $bins
+    find $tmpDir \
+      -maxdepth 1 \
+      -regex ".*\.\(so.[0-9.]+\|so\|a\|dylib\)" \
+      -print0 | xargs -r -0 cp -t $out/lib
+    rmdir --ignore-fail-on-non-empty $out/lib $out/bin
+    runHook postInstall
+
+    echo "Finished cargoInstallHook"
+}
+
+
+if [ -z "${dontCargoInstall-}" ] && [ -z "${installPhase-}" ]; then
+  installPhase=cargoInstallHook
+  postBuildHooks+=(cargoInstallPostBuildHook)
+fi