ver-015 - 03.03.2014
+ workqueues: Introduce new flag WQ_POWER_EFFICIENT for power oriented workqueues. ported from (https://github.com/rmbq/android_kernel_htc_msm8960/commit/81c04de498f9739297a7434b6380735a937f81fb)
+ workqueue: Add system wide power_efficient workqueues. ported from (https://github.com/rmbq/android_kernel_htc_msm8960/commit/19868c58c8c6e29b3b80b28ac431265e886b7650)
+ block: queue work on power efficient wq. ported from (https://github.com/rmbq/android_kernel_htc_msm8960/commit/7f1e0efb5da76e4294b6792588633a7907d50b17)
+ xsched: Optimize build_sched_domains() for saving first SD node for a cpu. ported from (https://github.com/rmbq/android_kernel_htc_msm8960/commit/874f92583c8162d5fbf238d88acbb746b137df2e)
+ PHYLIB: queue work on system_power_efficient_wq. ported from (https://github.com/rmbq/android_kernel_htc_msm8960/commit/a0fd34a6444d09c2b66c724c360097a0157c0094)
+ ASoC: pcm: Use the power efficient workqueue for delayed powerdown. ported from (https://github.com/rmbq/android_kernel_htc_msm8960/commit/1165e99c732e9d9fb5a2509f6c4c097bdbe179dd)
+ ASoC: jack: Use power efficient workqueue. ported from (https://github.com/rmbq/android_kernel_htc_msm8960/commit/e08da126a557701e1b3b449f541ab4b2ad7f7f87)
+ regulator: core: Use the power efficient workqueue for delayed powerdown. ported from (https://github.com/rmbq/android_kernel_htc_msm8960/commit/7eddbde5f9d91f4a4b112f873c2b59da384ef214)
+ sleepy_plug: boots on sudden request and some clean. ported from (https://github.com/rmbq/android_kernel_htc_msm8960/commit/72173adf4aa1499c7f34e0b5122c6408428afef0)