Merge 'dev/msm-3.18-android_sync_revert' into msm-3.18

This reverts the sync driver changes introduced during kernel 3.18
upgrade as it is causing stability issues.

* (12 commits):
  android: sync: fix compilation errors when reverting sync fence api
  Move sync.h from staging into include/linux
  Revert "android: convert sync to fence api, v6"
  Revert "staging: android: Clean up else statement from sync_fence_poll()"
  Revert "staging: android: Cleanup style issues"
  Revert "staging: android: sync: Fix checkpatch warning: Missing a blank line after declarations"
  Revert "staging: android: use braces on all arms of if"
  Revert "android: fix reference leak in sync_fence_create"
  Revert "sync: Fix memory corruption in sync_timeline_signal()."
  Revert "staging: sync: Fix header file inclusion in sync_debug"
  Revert "Move sync.h from staging into include/linux"

Change-Id: Idce9e2394c5ba46c391c3cb117b223fa318ad119
Signed-off-by: Veera Sundaram Sankaran <veeras@codeaurora.org>