msm: kgsl: Set process information before printing trace information

Using ftrace from mem_map and mem_free before the process information
is stored in the entry will cause ftrace to dereference NULL. Wait for
this information to be set before tracing.

Change-Id: I5a5b67f2c019fe87a9697923847d4cd42fe5939f
Signed-off-by: Carter Cooper <ccooper@codeaurora.org>