Add duplicate XSAN tasks on QuadroP400.

Bug: skia:6881
Change-Id: I53356a19aaa488f0f739f8ddb687bbe0ea4994fe
No-Try: true
Reviewed-on: https://skia-review.googlesource.com/26365
Commit-Queue: Ben Wagner <benjaminwagner@google.com>
Reviewed-by: Eric Boren <borenet@google.com>
2 files changed