[PATCH v9 3/8] drm/i915/pxp: Add MTL helpers to submit Heci-Cmd-Packet to GSC

[Teres Alexis, Alan Previn]

On Thu, 2023-04-27 at 16:48 -0700, Teres Alexis, Alan Previn wrote:
> Add helper functions into a new file for heci-packet-submission.
> The helpers will handle generating the MTL GSC-CS Memory-Header
> and submission of the Heci-Cmd-Packet instructions to the engine.
> 
> 
alan: I accidentally forgot to carry Daniele's RB forward from rev8.
Repasting as this patch did not change:

Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio at intel.com>