drm/i915/dp: Fix LT debug print in SDP CRC enable

The debug print for enabling SDP CRC16 is applicable only for DP2.0, but
this debug print was not within the uhbr check and was always printed.
Fix this by adding proper checks and returning.

v2: Fix typo in commit message (Ankit)

Signed-off-by: Arun R Murthy <arun.r.murthy@intel.com>
Reviewed-by: Chaitanya Kumar Borah <chaitanya.kumar.borah@intel.com>
Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230808042000.3210715-1-arun.r.murthy@intel.com