Exclude the Nexus 5x from the following tests:

dEQP-EGL.functional.query_context.get_current_context.*
dEQP-EGL.functional.query_context.get_current_display.*
dEQP-EGL.functional.query_context.get_current_surface.r*
dEQP-EGL.functional.query_context.query_context.*

Bug: angleproject:3159
Change-Id: Ib02553944b952a687d5e10d624756310627b81c5
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1559204Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Courtney Goeltzenleuchter <courtneygo@google.com>
Commit-Queue: Tim Van Patten <timvp@google.com>