Use LLVM's binutils tools if GNU binutils tools don't exist
Since NDK 24 the (architecture-specific) GNU binutils are no longer available. Use the LLVM tools instead. https://android.googlesource.com/platform/ndk/+/ndk-release-r23/docs/BuildSystemMaintainers.md#Binutils
Should fix https://invent.kde.org/utilities/krecorder/-/jobs/1508370 and other failed Craft Android builds cause by the update of the NDK (sysadmin/ci-images!228 (merged)).