PM / Sleep: Clean up remnants of workqueue-based sync

When legacy wakelock code was removed, some of the code
for moving calls
to sys_sync() from suspend paths into a
workqueue item had not been
properly removed. Specifically,
one of the call sites to
suspend_sys_sync_wait() has been
mistakenly replaced with a call to
sys_sync(), which is not
necessary because the corresponding instance
of
suspend_sys_sync_queue() was already replaced with
sys_sync(). Clean
up the remnants of the legacy wakelock
code by removing the extraneous
call to sys_sync() and
restoring some of the surrounding printk
statements that
had been moved to suspend_sys_sync_queue() and
subsequently
lost.

CRs-Fixed: 498669
Change-Id:
Ifb2ede7808560f456c824d3d6359a4541c51b73f
Signed-off-by: Stepan
Moskovchenko <stepanm@codeaurora.org>

idea is taken here -
https://github.com/rmbq/android_kernel_htc_msm8960/commit/3b5fb69d2b83a5bab66ce6900f839d0bbf378a0a