Update kernel to builds 8860983 am: 8cb7fbbfd4 am: 84a61e48bf am: 1293afe7d6 am: 562886ca30

Original change: https://android-review.googlesource.com/c/kernel/prebuilts/4.19/arm64/+/2166803

Change-Id: Ic33be8d2266b81edd9112e753f143b32bec9e239
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>