xen/flask: Wire up XEN_DOMCTL_vuart_op

xen/flask: Wire up XEN_DOMCTL_vuart_op

Addition of FLASK permission for this hypercall was overlooked in the
original patch. Fix it. The only VUART operation is initialization that
can occur only during domain creation.

Fixes: 86039f2e8c20 ("xen/arm: vpl011: Add a new domctl API to initialize vpl011")
Signed-off-by: Michal Orzel <michal.orzel@amd.com>
Acked-by: Daniel P. Smith <dpsmith@apertussolutions.com>
master commit: 29daa72e4019aae92f857cf6e7e0c3ca8fb1483e
master date: 2025-01-08 13:05:38 +0100