msm: kgsl: Fix power api's used in fault interrupt sysfs control

Sysfs control of fault interrupt is using incorrect GPU power
control api's. *_clk api should not be used by rest of the
GPU driver, use the correct api for consistency.

Change-Id: I32f161c1fbf60ffe9458a5f64a8f8efb0dc79311
Signed-off-by: Tarun Karra <tkarra@codeaurora.org>
3 files changed