msm: kgsl: log debug info to help detect syncpoint deadlock

Dump sync fence info of a fence for which a KGSL context is waiting
for more than 5 seconds. This info will help detect if there is
a possible gpu syncpoint deadlock.

Change-Id: I53282ce08e716cfdb44ca448f880e84816dc4ded
Signed-off-by: Harshdeep Dhatt <hdhatt@codeaurora.org>