intel_idle: use pr_info() instead of printk()

JIRA: https://issues.redhat.com/browse/RHEL-11351



commit 91048ce4
Author: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Date:   Wed Apr 19 17:39:41 2023 +0300

    intel_idle: use pr_info() instead of printk()

    Substitute 'printk()' with 'pr_info()', because 'intel_idle' already uses
    'pr_debug()', so using 'pr_info()' will be more consistent.

    In addition to this, this patch addresses  the following checkpatch.pl
    warning:
      WARNING: printk() should include KERN_<LEVEL> facility level

Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Reviewed-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

Signed-off-by: David Arcari <darcari@redhat.com>