Omit GPUMemoryTest for GTX1070 Windows Vulkan.

BUG=skia:6092

Change-Id: I820a2da22a1d852091c6a3416e11f90d6f644bc6
Reviewed-on: https://skia-review.googlesource.com/6586
Reviewed-by: Greg Daniel <egdaniel@google.com>
Commit-Queue: Ben Wagner <benjaminwagner@google.com>
2 files changed