Update kernel to builds 8798673 am: 27d68f113a

Original change: https://android-review.googlesource.com/c/kernel/prebuilts/5.15/arm64/+/2146301

Change-Id: I43751026411b4c750ee376e59b484edf6cb592c5
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>