[PATCH v2] build: make buffer headroom configurable

[Morten Brørup]

> From: Bruce Richardson [mailto:bruce.richardson at intel.com]
> Sent: Tuesday, 27 February 2024 17.02
> 
> While this is not likely a setting that many will need to change, it's
> not
> the first time I've heard of users looking to adjust it.
> 
> Because it's such a simple change, I'd support having this accessible
> for
> easy config by end-users.
> 
> Acked-by: Bruce Richardson <bruce.richardson at intel.com>

+1 to what Bruce said.

Acked-by: Morten Brørup <mb at smartsharesystems.com>