updated skp fuzzer

Change-Id: If7f770c25e9a2cd9b8f3feb07c1756889f870431
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/306338
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Zepeng Hu <zepenghu@google.com>
3 files changed