drm/i915: remove a few __i915_printk() uses

__i915_printk() does nothing special for notice/info levels. Just use
the regular drm_notice() and drm_info() calls.

Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com>
Reviewed-by: Jonathan Cavitt <jonathan.cavitt@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/82857a0c04d3c11ca6758f05c13a3cec4f1a2f01.1722951405.git.jani.nikula@intel.com


Signed-off-by: Jani Nikula <jani.nikula@intel.com>