hammerhead: improve boot times

 * use noop scheduler on early init then switch back
   to row after sys.boot_completed=1
 * Taken from http://review.cyanogenmod.org/#/c/60904/

Change-Id: I22b6b6fecb66d810daf4cfb4ab6c56253e5ad02e
hammerhead: Raise sync_freq to 1.026GHz from 918MHz

  * This sysfs node was created as part of the ondemand changes
    for multi-core performance.
  * Taken from kk_3.5 branch of device/qcom/common

Change-Id: I3733714e76a22d4e589272535796bd298c9c6430