Update kernel to builds 7518296 am: 1baf62ab03 am: 116a32ce84 am: 7d46db2155 am: 7a571e8bcc am: 85a3e5b7af am: 71a499b69f

Original change: https://googleplex-android-review.googlesource.com/c/kernel/prebuilts/5.4/x86-64/+/15220030

Change-Id: I736bd7fc72da7b37541c988080a39f7843ee7f31
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>