init.qcom.rc: fix "add_tid_to_cgroup failed to write" errors in logcat
patch taken from http://review.android.git.linaro.org/#/c/3289/1/rootdir/init.rc

Change-Id: Id5a1e89e2d177f59f3fd73f8d4965f362ed34d67
p50x: Enable the soft boot overlay

Change-Id: I1d06edb1eb405553da662efd5c77a6ab6c28be5f
Set background app limit to 12

* For low memory devices, the original limit of 24 would be
  impractical anyways since it cannot contain that many apps.

(from CAF)

Allow more background services

* Some services or broadcast may get tremendous delay because
  of the limited background services. It will bring about many
  issues like alarmmanagerservice's wakelock held too long.

(from CAF)

Change-Id: Ibc679513c44810393f015afc7fb04fe2563dc413
Merge branch 'cm-11.0' of https://github.com/androidarmv6/android_device_lge_msm7x27-common into cm-11.0