drm/i915/display: Add drm_panic support for 4-tiling with DPT

On Alder Lake and later, it's not possible to disable tiling when DPT
is enabled.
So this commit implements 4-Tiling support, to still be able to draw
the panic screen.

Signed-off-by: Jocelyn Falempe <jfalempe@redhat.com>
Link: https://lore.kernel.org/r/20250624091501.257661-11-jfalempe@redhat.com


Signed-off-by: Maarten Lankhorst <dev@lankhorst.se>