drm/i915/cx0: Nuke extraneous timeout debugs

drm/i915/cx0: Nuke extraneous timeout debugs

The actual timeout used isn't particularly interesting, so
don't print it. Makes the code simpler.

The debugs are also using some random capitalizaton rule.
Clean that up a bit while at it.

Also intel_cx0_powerdown_change_sequence() used one timeout
in the actual code but printed a different one.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patch.msgid.link/20251106152049.21115-3-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>