Similar to FBC let's expose an debugfs file to control
IPS false color. Enabling this provides an immediate visual
feedback on whether IPS is working or not.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230327133942.22063-2-ville.syrjala@linux.intel.comReviewed-by: Jani Nikula <jani.nikula@intel.com>