msm: kgsl: Do not enable adreno core feature by default

Do not enable SP/TP hardware controlled power collapse
feature by default. This feature should be enabled by
defining in gpulist of the target.
Without this fix respective sysfs entry will show
incorrect value.

Change-Id: I78b3cd856dc5b684023bad023ad4c96fd2bdd946
Signed-off-by: Pankaj Gupta <gpankaj@codeaurora.org>