Update kernel to builds 8747247 am: 4ff6024e73

Original change: https://googleplex-android-review.googlesource.com/c/kernel/prebuilts/common-modules/virtual-device/5.15/x86-64/+/19002672

Change-Id: Id9dd0179782802a7d67f036778b0fa62323f55b1
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>