[PATCH] kernel: exit: cleanup release_thread()

[Brian Cain]

> -----Original Message-----
> From: Kefeng Wang <wangkefeng.wang at huawei.com>
...
> Only x86 has own release_thread(), introduce a new weak
> release_thread() function to clean empty definitions in
> other ARCHs.
> 
> Signed-off-by: Kefeng Wang <wangkefeng.wang at huawei.com>
> ---

Acked-by: Brian Cain <bcain at quicinc.com>