drm/i915: Pimp plane debugs

drm/i915: Pimp plane debugs

Include the standard "[PLANE:%d:s]" stuff in all plane debugs
(or rather all I was able to find), to provide better information
on which plane we're actually talking about.

There are a few spots where we care about the CRTC as well, so
include that where appropriate.

Reviewed-by: Chaitanya Kumar Borah <chaitanya.kumar.borah@intel.com>
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/20250206185533.32306-13-ville.syrjala@linux.intel.com