Also test SwiftShader DMSAA

Change-Id: Ibb4155f507ee6b9c61438cbff1aa50adf3ca724a
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/452796
Commit-Queue: Brian Osman <brianosman@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>
Auto-Submit: Brian Osman <brianosman@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>
2 files changed