[PATCH 4/8] erofs: tidy up z_erofs_do_read_page()

[Yue Hu]

On Thu, 17 Aug 2023 16:28:09 +0800
Gao Xiang <hsiangkao at linux.alibaba.com> wrote:

>  - Fix a typo: spiltted => split;
> 
>  - Move !EROFS_MAP_MAPPED and EROFS_MAP_FRAGMENT upwards;
> 
>  - Increase `split` in advance to avoid unnecessary repeat.
> 
> Signed-off-by: Gao Xiang <hsiangkao at linux.alibaba.com>

Reviewed-by: Yue Hu <huyue2 at coolpad.com>