Update kernel to builds 7618735 am: cbdc9d164e am: 5a90e7f3b6

Original change: https://googleplex-android-review.googlesource.com/c/kernel/prebuilts/common-modules/virtual-device/5.10/arm64/+/15481543

Change-Id: I48bf6c204d307f0055cff95d08359e249ac566d4