PM / devfreq: comments for get_dev_status usage updated
PM / devfreq: comments for get_dev_status usage updated

With the introduction of devfreq_update_stats(), governors
are not recommended to use get_dev_status() directly.

Signed-off-by: MyungJoo Ham <84146178f7c201fa3079bfc93fccba71d81dffe3@samsung.com>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs