SwiftShader segfaults when trying to resolve missed symbol. The symbol is requested at least on ARM32 (armv7l)..

Change-Id: I96dd157afc1832ef39daaf46d818c8033820d86b
Bug: b/149229646
Reviewed-on: https://swiftshader-review.googlesource.com/c/SwiftShader/+/41049Reviewed-by: Ben Clayton <bclayton@google.com>
Reviewed-by: Alexis Hétu <sugoi@google.com>
Kokoro-Presubmit: kokoro <noreply+kokoro@google.com>
Kokoro-Presubmit: Lingfeng Yang <lfy@google.com>
Tested-by: Ben Clayton <bclayton@google.com>