Most of Chromium uses Subzero as the JIT backend for Reactor, but
Fuchsia on ARM64 uses LLVM, which previously broke when switching to
ORCv2 due to LLVM_ENABLE_ABI_BREAKING_CHECKS being set inconsistently
https://swiftshader-review.googlesource.com/c/SwiftShader/+/49908

Bug: b/171897980
Bug: chromium:1140854
Change-Id: I4ab3422387fa966fb76fb90b27532630de69594a
Reviewed-on: https://swiftshader-review.googlesource.com/c/SwiftShader/+/49852
Kokoro-Result: kokoro <noreply+kokoro@google.com>
Tested-by: Nicolas Capens <nicolascapens@google.com>
Reviewed-by: Antonio Maiorano <amaiorano@google.com>