Merge "Retire 5.10 kernel prebuils" am: 1e891fca62 am: cea13929a7 am: 1b77c354c2

Original change: https://android-review.googlesource.com/c/platform/prebuilts/qemu-kernel/+/1576396

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: I80d6ede0842a793b737274ecea06fc303eec732b