liblog: add required function

Some Motorola proprietaries require a function named __android_log_loggable. This
change adds the function and solves problems with radio and other
binaries on qualcomm based Motorola phones. This code is activated with
TARGET_USES_MOTOROLA_LOG:=true

Change-Id: I722b42d34198c027f265c3cf9f220d9798814915
Revert "Init: Modify user/group option for bootanim"

This reverts commit 65745d12fd0af9c0ffc7ef8c94bcdbc25788b9ce.
This has a dependency on app-ops for validating access to sf that
needs to be resolved. Remove until we work on PG
Merge remote-tracking branch 'cyanogen/cm-12.0' into cm-12.0