msm: kgsl: Do not hold active count during CFF

When CFF is enabled active count on device was held which prevented
device from clocking off. This was done because simulator could not
handle device restarts. Instead of fixing this problem here the
post processing script can be modified to discard CFF data before
every starting opcode of CFF. Hence, there is no longer a requirement
to hold active count during CFF.

Change-Id: I7c23f90f2fe0deb8cfba10a067765a54c305bcef
Signed-off-by: Shubhraprakash Das <sadas@codeaurora.org>