BACKPORT: FROMLIST: iommu/io-pgtable-arm-v7s: Extend PA34 for MediaTek

MediaTek extend the bit5 in lvl1 and lvl2 descriptor as PA34.

Bug: 167939345
Link: https://lore.kernel.org/patchwork/patch/1301120/


Change-Id: I6bd677285b73271f977f8bdeb4ef6b658b2ea81d
Signed-off-by: Yong Wu <yong.wu@mediatek.com>
Signed-off-by: Chao Hao <chao.hao@mediatek.com>
Signed-off-by: Chun-Hung Wu <chun-hung.wu@mediatek.com>