Update kernel to builds 7394718 am: a84ff92187 am: d67653c5b9 am: 885de323d1 am: ab0e7677f3 am: 49992ac13c

Original change: https://android-review.googlesource.com/c/kernel/prebuilts/5.4/arm64/+/1715705

Change-Id: Iffade9acb6785ed9e81df9a0245d377d35dedbd0