Add failing SKP from new SKP repository to the ImgDecode blacklist

Bug: skia:6818
Change-Id: I03efbba1e67ed9c5e55eda056985d1be5fda13b2
Reviewed-on: https://skia-review.googlesource.com/31464
Reviewed-by: Ben Wagner <benjaminwagner@google.com>
Commit-Queue: Ravi Mistry <rmistry@google.com>
1 file changed