This is automatically downloaded and cached.
This is another step towards having hermetic builds, and is required for generating code coverage.

Bug: b/152192800
Change-Id: I7c35d92f5844b41ad326e7b11a7725cc6ea9696b
Reviewed-on: https://swiftshader-review.googlesource.com/c/SwiftShader/+/43111Reviewed-by: Nicolas Capens <nicolascapens@google.com>
Kokoro-Presubmit: kokoro <noreply+kokoro@google.com>
Tested-by: Ben Clayton <bclayton@google.com>