The GICv2 can have virtualization extension support, consisting
of an additional set of registers and interrupts. Add the necessary
binding to the GIC DT documentation.
Signed-off-by: NMarc Zyngier <marc.zyngier@arm.com>
Acked-by: NDavid Vrabel <david.vrabel@citrix.com>
Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>