Update notes for submitted changes

* ondemand: add sysfs entry for down_diff_multi_core
* cpufreq: ondemand: fix timer-related list corruption in store_powersave_bias()
* cpufreq: ondemand: Fix hotplug deadlock with store_powersave_bias
* cpufreq: ondemand: Fix update_sampling_rate race with hotplug
* cpufreq: ondemand: add input_boost interface
* cpufreq: Avoid using smp_processor_id() in preemptible context
* cpufreq: ondemand: Boost CPU frequency only for touch input
* cpufreq: ondemand: Disable freq sync feature in store_powersave_bias
* cpufreq: ondemand: change freq sync code to use per-CPU kthreads
* cpufreq: Use dedicated high-priority workqueues
* msm: Synchronize CPU frequency on thread migration
* cpufreq: Fix optimal_freq logic on ramp down