tools/xen-access: Print gla valid/fault information

Extend the print-out of the memory violations to show gla valid/fault information.

v4: Change vcpu-id printf to unsigned and update to new fields.
v2: Update to new fields and change printing 1/0 to y/n.

Signed-off-by: Tamas K Lengyel <tamas.lengyel@zentific.com>