[PATCH] nptl: add missing pthread-offsets.h

[Florian Weimer]

* Andreas Schwab:

> On Feb 06 2020, Florian Weimer wrote:
>
>> * Andreas Schwab:
>>
>>> All architectures using their own definition of struct
>>> __pthread_rwlock_arch_t need to provide their own pthread-offsets.h.
>>
>> What's the context for this change?
>
> <mvmpneskjhw.fsf@suse.de>

Which is:

From: Andreas Schwab <schwab@suse.de>
Subject: [PATCH] nptl: update default pthread-offsets.h
To: libc-alpha@sourceware.org
Date: Wed, 05 Feb 2020 18:54:19 +0100

I still don't understand why these discrepancies have not resulted in
test failures.