drm/i915/color: conversion to drm_device based logging macros.

Initial conversion of the straightforward printk based logging macros to
the struct drm_device based logging macros in
i915/display/intel_color.c.

Signed-off-by: Wambui Karuga <wambui.karugax@gmail.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200206080014.13759-5-wambui.karugax@gmail.com