Add another gm to Win Intel Vulkan blacklist

Bug: skia:6398
Change-Id: I3e4006ce1fbe1644c6d99467c5b9e785161dcc3d
Reviewed-on: https://skia-review.googlesource.com/19277
Commit-Queue: Greg Daniel <egdaniel@google.com>
Commit-Queue: Mike Reed <reed@google.com>
Reviewed-by: Mike Reed <reed@google.com>
2 files changed