qcom: Enable Retention sleep mode on boot

Signed-off-by: bmc08gt <bmc08gt.teamb00sted@gmail.com>
qcom-common: power: Tuning and cleanups

 * Tune the governor for better power usage and interactivity
 * Reset tuning parameters if governor changes
 * Cleanup

 * Use our macros instead of string literals

Change-Id: I56f5dcc7f15e5dfbcc38338d515fd41d04662ab1
only turn off accept_ra_defrtr for rmnet interfaces

accept_ra_defrtr=0 on wifi interfaces breaks IPv6 for networks using RA.  For
wifi networks, the kernel sets up the default route as well as the interface
address (in other words: with defrtr=0, wifi interfaces get an address but no
default route).  This is not the case for the rmnet (ril) interfaces, as
Samsung's ril libraries configure the default IPv6 route after setting up the
PDP.
Merge branch 'jb-mr1' of https://github.com/BMc08GT/device_samsung_qcom-common into jb-mr1