scripts: Add --no-build for Android toolchain
scripts: Add --no-build for Android toolchain

With switch to importing shaderc, we don't need to
create prebuilts anymore.

KhronosGroup/Vulkan-LoaderAndValidationLayers,KhronosGroup/Vulkan-LoaderAndValidationLayers,KhronosGroup/Vulkan-LoaderAndValidationLayers,KhronosGroup/Vulkan-LoaderAndValidationLayers