qemu: Increase the timeout when stopping the VM
qemu: Increase the timeout when stopping the VM

Because we recently changed the default timeout of the VM starting,
this commit mirror this behavior and apply the same timeout of 10s
to the VM stopping.

Signed-off-by: Sebastien Boeuf <90b401417360b1924ef3f520ddee932686110f85@intel.com>

containers/virtcontainers,containers/virtcontainers