Update QEMU 8 to add virglrenderer support. am: cebfcd618a

Original change: https://android-review.googlesource.com/c/device/google/cuttlefish_vmm/+/2836857

Change-Id: I62608293fe27d28d00a3085301a9917238689184
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>