UPSTREAM: drm/i915/adlp: Add DP MST DPT/DPTP alignment WA (Wa_14014143976)

Add a workaround to fix BS-BS jitter issues on MST links, aligning
DPT/DPTP MTPs.

Bspec: 50050, 55424

Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240129175533.904590-4-imre.deak@intel.com


(cherry picked from commit d4e745ba)

BUG=b:332903004, b:322223603
TEST=Verify Dell U3224KB 6k mode on Rex using UHBR, MST encoder, Big
     Joiner, and DSC

Change-Id: Iee12a7bccb42f483de6cecd01d45c06a98728be9
Signed-off-by: Rakshith M O <rakshith.m.o@intel.com>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/kernel/+/5802878


Reviewed-by: Manasi Navare <navaremanasi@chromium.org>
Reviewed-by: Sean Paul <sean@poorly.run>
Signed-off-by: Hubert Mazur <hmazur@google.com>