UPSTREAM: drm/i915: Precompute disable_pipes bitmask in intel_commit_modeset_disables()

Copy the pipe bitmask based approach from skl_commit_modeset_enables()
into intel_commit_modeset_disables(). This avoids doing so many
duplicated checks in all the loops, and also let's WARN at the
end if we screwed up somewhere and forgot to disable some pipe.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240305084730.19182-2-ville.syrjala@linux.intel.com


Reviewed-by: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com>
(cherry picked from commit 5efb03ce)

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

Change-Id: I15726bcb8ccfd563689c03dded9a9b7a02961e45
Signed-off-by: Rakshith M O <rakshith.m.o@intel.com>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/kernel/+/5802849


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