[PATCH v2] aarch64: allow adding/removing just feature flags via .arch_extension

[Jan Beulich]

>>> On 18.11.14 at 12:57, <marcus.shawcroft@gmail.com> wrote:
> Would you mind adding the .arch_extension directive to c-aarch64.texi,
> I think  copying the text from c-arm would be fine?

To be honest, I'd rather not: If I were to, I'd want to place it next to
the description of .arch, but I can't seem to find that.

Jan