Mac OPENGL/AMD dEQP test suppressions were being ignored because in
SystemInfo the activeGPUIndex was used when the primaryGPUIndex should
have been used.
Bug: angleproject:3373
Change-Id: I2664049b956bf8903c6d7094ec27646766e7ce16
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1565056
Commit-Queue: Jonah Ryan-Davis <jonahr@google.com>
Reviewed-by: Yuly Novikov <ynovikov@chromium.org>
