drm/i915: Create the printer only once in intel_pipe_config_compare()

Create the drm_printer at the start of intel_pipe_config_compare()
and pass it on to all the mismatch() functions.

v2: Rebase
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240229184234.31272-1-ville.syrjala@linux.intel.com