hw/misc/vmlaunchupdate: add api header

Add a separate header file for guest usable api definitions.

CC: Alex Graf <graf@amazon.com>
CC: Gerd Hoffman <kraxel@redhat.com>
Reviewed-by: Alexander Graf <graf@amazon.com>
Signed-off-by: Ani Sinha <anisinha@redhat.com>
Message-ID: <20260819041105.110625-1-anisinha@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
1 file changed