Allow vanirflash to run via adb without root permissions

Change-Id: Id4e549b7a9b7a9f8bf8a677231704b1429527837
init.vanir.rc: permissions for cpufreq and cpuctl

Change-Id: Ie7ba9af6c2686c54432d5035bff40a241186b7bf
init.vanir.rc: Default to ksm if uksm is not supported

Change-Id: I7b55cb90eed96e3674f161f8b5732595a59a97b6