Reland "CHROMIUM: drm/i915: Limit the bigjoiner on MST support only for MTL"

This is a reland of commit d71144c2a7ccac206375b1b0e82f78eaad8e3f3c

Original change's description:
>CHROMIUM: drm/i915: Limit the bigjoiner on MST support only for MTL
>
>If we enable bigjoiner on MST support for all devices,
>that might affect some already released devices.
>
>To avoid that limit the bigjoiner on MST support only
>for MTL. For older platforms, higher modes on MST that
>require bigjoiner will be rejected.
>
>v2:
>Return CLOCK_HIGH if bigjoiner needed for platforms older
>MTL (Drew)
>
>BUG=b:298042667
>UPSTREAM-TASK=b:326336997
>TEST= cros emerge
>
>Cc: Drew Davenport <ddavenport@chromium.org>
>Change-Id: Ib136e7f7824ef7a772195b3a14328a18d66dc457
>Signed-off-by: Manasi Navare <navaremanasi@chromium.org>
>Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/kernel/+/5363858


>Reviewed-by: Drew Davenport <ddavenport@chromium.org>
Signed-off-by: Charlton Lin <charlton.lin@intel.com>

 Conflicts:
	drivers/gpu/drm/i915/display/intel_dp_mst.c
(pass connector to intel_dp_need_bigjoiner() call)

BUG=b:308455498
TEST=Verify Asus PG32UQXR 4K160 mode on Rex using Big Joiner

Change-Id: I5c7ead362521775cc0d3d38631f1c250b7df6ef9
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/kernel/+/5514525


Tested-by: Charlton Lin <charlton.lin@intel.com>
Reviewed-by: Manasi Navare <navaremanasi@chromium.org>
Commit-Queue: Manasi Navare <navaremanasi@chromium.org>
Signed-off-by: Rakshith M O <rakshith.m.o@intel.com>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/kernel/+/5802874


Signed-off-by: Hubert Mazur <hmazur@google.com>