cpufreq: CPU Voltage Control (VDD sysfs interface)

Change-Id: Ie1b43af758ffad28258a55a30f5068e866c3da1c
acpuclock-7x30: Added overclocking and undervolting support

Thanks to CastagnaIT, Doomsday94 and Diablo96 for their sources

Change-Id: Ifdaad6424d5bb92a428dcbac1a8dd0462bd0fb88
acpuclock-7x30: Raised some standard UV and stock voltages for high OC cpu frequencies

Change-Id: I9a4341925f2e519ed71179cbf757e25c4e36bb50
mm: Lowered swappiness 60->45

Change-Id: I35db9695bc39a66ebe122cc45f4b92c48a248f4e