sched: Rollback upstream backport

 * There are some stability issues under certain loads with this
   patchset. Rollback until we can revisit.

Revert "[backport] sched_rt: Upstream fixes"

This reverts commit 3aef4fdd36c3db6f5df88629ab0a9d6c42bae26c.

Revert "[backport] sched: Misc upstream scheduler improvements"

This reverts commit fa16d20f1c90bb0d7955b194d450891de680494e.

Revert "[backport]: sched: Load-based CPU boosting"

This reverts commit 54d5731ffe5a109691de3f61eeda14bd42942325.

Revert "sched: Remove get_online_cpus() usage"

This reverts commit 86b047357013e1d5c5547fd6d466dd75b90afc81.

Change-Id: I8bb638023a95df7ae7a44b06017c0190985e3f22
sched: fix race between try_to_wake_up() and move_task()

Until a task's state has been seen as interruptible/uninterruptible
and it is no longer on_cpu, it is possible that the task may move
to another CPU (load balancing may cause this). Here is an example
where the race condition results in incorrect operation:

- cpu 0 calls put_prev_task on task A, task A's state is TASK_RUNNING
- cpu 0 runs task B, which attempts to wake up A
- cpu 0 begins try_to_wake_up(), recording src_cpu for task A as cpu 0
- cpu 1 then pulls task A (perhaps due to idle balance)
- cpu 1 runs task A, which then sleeps, becoming INTERRUPTIBLE
- cpu 0 continues in try_to_wake_up(), thinking task A's previous
  cpu is 0, where it is actually 1
- if select_task_rq returns cpu 0, task A will be woken up on cpu 0
  without properly updating its cpu to 0 in set_task_cpu()

Change-Id: I870f7ffefe30ba2aae1114fd5e66d1a73e6a54fb
CRs-Fixed: 665958
Signed-off-by: Steve Muckle <smuckle@codeaurora.org>
video: mdss: Sunlight readability enhancement support

 * This hardware supports a postprocessing mode which improves
   readbility in bright sunlight. Add support for enabling
   this mode when the backlight value crosses a threshold.
 * Enable the feature using /sys/class/graphics/fb0/sre
 * Also add a max backlight level for using CABC. It's not
   effective at full brightness and causes too much visible
   distortion with many images.

Change-Id: I213eb5d91e526c80a0dc88e6e05e6d6f35841fdf
mmc: core: Optimize entering HS400 mode

In the current HS400 selection sequence high speed mode is entered
twice unnecessarily. Skip the first hs selection as it is also done
as part of entering high speed DDR mode.

CRs-fixed: 707453
Change-Id: Id027af977fe416056a6fbef39da1a84e41d89e53
Signed-off-by: Venkat Gopalakrishnan <venkatg@codeaurora.org>
Revert "qseecom: Add support to handle multiple app load & unload"

This reverts commit f856ce3045a68e12089c7dc2152f5c53bb259305.

Change-Id: I31b5994fb42118edd46e453b0d453225c92000a1
Merge remote-tracking branch 'cm/cm-11.0' into HEAD