drm/i915/dp: Add DSC BPC/BPP constraints while selecting pipe bpp with DSC

Currently we check if the pipe_bpp selected is >= the
min DSC bpc/bpp requirement. We do not check if it is <= the max DSC
bpc/bpp requirement.

Add checks for max DSC BPC/BPP constraints while computing the
pipe_bpp when DSC is in use.

v2: Fix the commit message.

Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Reviewed-by: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230817142459.89764-15-ankit.k.nautiyal@intel.com