Restrict the gpu_hang suite to R31.

The suite was constrained to R30 at creation time, but it missed
the R30->R31 branch split by a couple of builds, so it's in R31
instead.

BUG=None
TEST=None

Change-Id: I4a502307bfa76078a419e2c3049749021cc02469
Reviewed-on: https://gerrit.chromium.org/gerrit/65955
Tested-by: Richard Barnette <jrbarnette@chromium.org>
Reviewed-by: Simran Basi <sbasi@chromium.org>
Reviewed-by: Dan Shi <dshi@chromium.org>
1 file changed