Roll Skia from d71cfa577734 to 47756c2666b2 (2 revisions) am: 89e506f703 am: e0037179b1

Original change: https://googleplex-android-review.googlesource.com/c/platform/external/skia/+/18188807

Change-Id: I26ca84402a916195036a2419895ea3a498bb3bfb
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>