Update notes for submitted changes

* pmic: re-enable power key reboot
* cpufreq: interactive: Remove trace event from idle_start handler
* cpufreq: interactive: sync freq feature for interactive governor
* cpufreq: interactive: Add a sampling_down_factor for max frequencies
* cpufreq: interactive: Reset floor_validate_time if busy at max for 100ms
* cpufreq: interactive: Allow 1 ms error in above_hispeed_delay comparisons