MipmapTestES3.GenerateMipmapPreservesOutOfRangeMips/ES3_OpenGLES started
failing on NVIDIA Shield right after it was introduced.

TBR=syoussefi@chromium.org
Bug: angleproject:4551
Bug: angleproject:4786
Change-Id: Id6b258a09d33783faf34f867523da31995cee4e7
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2264102Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>