[PATCH -next] powerpc/eeh: Fix debugfs_simple_attr.cocci warnings

[Russell Currey]

On Thu, 2018-12-20 at 02:42 +0000, YueHaibing wrote:
> Use DEFINE_DEBUGFS_ATTRIBUTE rather than DEFINE_SIMPLE_ATTRIBUTE
> for debugfs files.
> 
> Semantic patch information:
> Rationale: DEFINE_SIMPLE_ATTRIBUTE + debugfs_create_file()
> imposes some significant overhead as compared to
> DEFINE_DEBUGFS_ATTRIBUTE + debugfs_create_file_unsafe().
> 
> Generated by:
> scripts/coccinelle/api/debugfs/debugfs_simple_attr.cocci
> 
> Signed-off-by: YueHaibing <yuehaibing at huawei.com>

Acked-by: Russell Currey <ruscur at russell.cc>