anv: Add the pci_id into the shader cache UUID

anv: Add the pci_id into the shader cache UUID

This prevents a user from using a cache created on one hardware
generation on a different one.  Of course, with Intel hardware, this
requires moving their drive from one machine to another but it's still
possible and we should prevent it.

Reviewed-by: Chad Versace <chadversary@chromium.org>
Cc: mesa-stable@lists.freedesktop.org