arm/arm64: gicv3: Add some re-distributor defines

PROPBASER, PENDBASE and GICR_CTRL will be used for LPI management.

Signed-off-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Zenghui Yu <yuzenghui@huawei.com>
Signed-off-by: Andrew Jones <drjones@redhat.com>