wm8994 fix
cpufreq/zzmoove: add lots of debugging stuff

trying to figure out why policy->max sometimes drops to 1600 while OC'd.
cpufreq/zzmoove: default to safe freq when out-of-range

when this was set to curfreq, an out-of-range frequency could get
stuck. often times the stuck frequency would be max, resulting in
short battery life. now it will at least revert back to a safe
frequency.
cpufreq/zzmoove: adjust inputbooster filter for note2 and add s-pen