[PATCH v2] Linux: Adjust struct rseq definition to current kernel version

[Florian Weimer]

* Mathieu Desnoyers via Libc-alpha:

> ----- On Jun 2, 2022, at 10:26 AM, Florian Weimer fweimer@redhat.com wrote:
>
>> This definition is only used as a fallback with old kernel headers.
>> The change follows kernel commit bfdf4e6208051ed7165b2e92035b4bf11
>> ("rseq: Remove broken uapi field layout on 32-bit little endian").
>> 
>
> Reviewed-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>

Thank you for the review!  I had already pushed it based on Carlos'
comments.

Florian