irqchip/gic-v3-its: fix some definitions of inner cacheability attributes

mainline inclusion
from mainline-5.2-rc1
commit 0f29456d
category: bugfix
bugzilla: 16380
CVE: NA

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Some definitions of Inner Cacheability attibutes need to be corrected.

Fixes: 8c828a53 ("irqchip/gicv3-its: Restore all cacheability attributes")
Signed-off-by: Hongbo Yao <yaohongbo@huawei.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Reviewed-by: Xuefeng Wang <wxf.wang@hisilicon.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>