irqchip/gicv3-its: Add workaround for hip09 ITS erratum 162100801

When enabling GICv4.1 in hip09, VMAPP fails to clear some caches during
the unmap operation, which can causes vSGIs to be lost.

To fix the issue, invalidate the related vPE cache through GICR_INVALLR
after VMOVP.

Suggested-by: Marc Zyngier <maz@kernel.org>
Co-developed-by: Nianyao Tang <tangnianyao@huawei.com>
Signed-off-by: Nianyao Tang <tangnianyao@huawei.com>
Signed-off-by: Zhou Wang <wangzhou1@hisilicon.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Marc Zyngier <maz@kernel.org>