Update kernel to builds 9551900 am: 0fcb99aa22 am: a51c5febf3

Original change: https://android-review.googlesource.com/c/kernel/prebuilts/4.19/arm64/+/2424825

Change-Id: I7d979ef9cae27e0d90f28052111d9b9c974724c6
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>