[PATCH] erofs-utils: loosen hash_64 compile restriction

[Gao Xiang]

On Thu, Dec 02, 2021 at 11:09:23AM -0800, Daeho Jeong wrote:
> From: Daeho Jeong <daehojeong at google.com>
> 
> We've got the below "unused function" warning for 32bit compilation. So,
> fixed it.
> 
> error: unused function 'hash_64' [-Werror,-Wunused-function]
> 
> Signed-off-by: Daeho Jeong <daehojeong at google.com>

Reviewed-by: Gao Xiang <hsiangkao at linux.alibaba.com>

Thanks,
Gao Xiang