defconfigs: enable minmax

2.3/2.26 GHz by default; can change if you want using an app

Change-Id: Ief183759ce90b0e0c36418db56d77701668cfc70
overall_stats: add overall stats for all available cores

this is much more accurate stats tracking than just displaying core 0's
stats from most other kernels

Signed-off-by: faux123 <reioux@gmail.com>
overall_stats: make dual/quad core stats configurable via meunconfig

Signed-off-by: faux123 <reioux@gmail.com>
overall_stats: forward port to kernel 3.4+

by replacing deprecated functions with native add/sub for 64bit data types

Signed-off-by: faux123 <reioux@gmail.com>
Revert "dts: introduce 268MHz clock"

This reverts commit d8238a5ef213005ad0dcc89aea678e429ff64587.
dts: 268 mhz and cpufreq table (thanks to faux123 and Savoca)

Change-Id: I7db825fc949c39503ef182698c16ca18cd028d0f
DTS: more OC code from Savoca and faux123

Change-Id: I0db337dc38cfb7ce9d9078f3009727cfe863b156