Add qemu powernv p10 Ubuntu 21.10 script

Author: mpe

scripts/boot/qemu-powernv+p10+tcg+ubuntu21.10

@@ -0,0 +1,7 @@
+#!/bin/bash
+
+export CPU=POWER10
+export ACCEL=tcg
+export CLOUD_IMAGE=ubuntu21.10-cloudimg-ppc64el.qcow2
+
+exec "$(dirname "$0")"/qemu-powernv $@