ANDROID: virt: geniezone: Align the gzvm driver with mainline v11

Change lists:
- Resolve low memory issue by using only one api to get pages for guest VM.
- Fix coding style from viewer suggestion and checking tools.
- Separate the GenieZone dt-binding into its own patch to resolve the
  `DT_SPLIT_BINDING_PATCH` warning from checkpatch.pl.

Change-Id: I9c7cb862cc5a926c152efa145cd1c5b364b5049e
Signed-off-by: Yingshiuan Pan <yingshiuan.pan@mediatek.com>
Signed-off-by: Jerry Wang <ze-yu.wang@mediatek.com>
Signed-off-by: Kevenny Hsieh <kevenny.hsieh@mediatek.com>
Signed-off-by: Liju Chen <liju-clr.chen@mediatek.com>
Bug: 343838587
Link: https://lore.kernel.org/all/20240529084239.11478-1-liju-clr.chen@mediatek.com/