Require Linux kernel 3.2 or later on x86 / x86_64

[Florian Weimer]

On 05/05/2017 07:09 PM, Joseph Myers wrote:
> 	* sysdeps/unix/sysv/linux/i386/configure.ac (arch_minimum_kernel):
> 	Remove.
> 	* sysdeps/unix/sysv/linux/i386/configure: Regenerated.
> 	* sysdeps/unix/sysv/linux/x86_64/64/configure.ac
> 	(arch_minimum_kernel): Remove.
> 	* sysdeps/unix/sysv/linux/x86_64/64/configure: Regenerated.
> 	* README: Update statement about Linux kernel requirements.

Looks good to me.

Thanks,
Florian