Update kernel to builds 8949902 am: 7b07e2d71e am: 16a9adce8e am: 0a7803ea78 am: 81a092c72a

Original change: https://googleplex-android-review.googlesource.com/c/kernel/prebuilts/5.10/arm64/+/19632706

Change-Id: Ied610186569ae347141c46844eebb4bc357568d6
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>