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

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

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: I5b68a57856009a2ba10ce05a5b2b84698cc910bf