tests/avocado: Add ppc pseries and powernv hash MMU tests

POWER CPUs support hash and radix MMU modes. Linux supports running in
either mode, but defaults to radix. To keep up testing of QEMU's hash
MMU implementation, add some Linux hash boot tests.

Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
2 files changed