The tests turn out to fail before we have a context current on AMD so we
cannot use isAMD and have to resort to disabling for all Linuxes on the
FYI bots. Using MAYBE like Chrome doesn't seem to work with TEST_P.

BUG=angleproject:892

Change-Id: Ibabd2c359ce55c7677af0f8bd5723f845935f2be
Reviewed-on: https://chromium-review.googlesource.com/284872Reviewed-by: Geoff Lang <geofflang@chromium.org>
Tested-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/284749