Update kernel to builds 8631720 am: a5cdbf3565

Original change: https://android-review.googlesource.com/c/kernel/prebuilts/5.15/x86-64/+/2104044

Change-Id: I9a9dadc8717eeeac6c3432860c8cd394fabb40a7
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>