makefile: Added graphite and a couple other optimizations
msm: msm_limiter: added new drivers for limit cpu frequencies
msm: msm_limiter: set min, max and suspend frequencies default values
msm: msm_limiter: Improve routines

Signed-off-by: Pranav Vashi <neobuddy89@gmail.com>
defconfig: enable msm limiter
sched: cpu_power: Add controls for sched features

* Currently we provide users attributes to enable/
  disable GENTLE_FAIR_SLEEPERS and ARCH_POWER
* This patch uses already implemented GFS structure
  to add ARCH_POWER attribute.
* Attributes can be found under /sys/kernel/sched/*

Signed-off-by: Pranav Vashi <neobuddy89@gmail.com>
fastcharge: backported and adapted for Nexus 6

thanks a lot
@faux123
@DooMLoRD
Makefile adjustments and clean up
Bumped to R7