msm: kgsl: Remove profiling flag if no profiling entry is found

Zero out the cmdbatch profiling flag is a profiling entry is not
found for the compat case. If the cmdbatch profiling flag is still
set without any profiling buffer, we may end up doing stupid stuff
later on.

Change-Id: I3fd893f4ee1f80b15120a163fe46d8ce713f13e4
Signed-off-by: Shrenuj Bansal <shrenujb@codeaurora.org>