msm: kgsl: Turn off gpu interrupts during stall-on-fault

Disable gpu interrupt inline instead of changing power states as gmu
based targets do not implement the power state machine. Make sure we
skip turning off the gpu interrupt during reset after stall on fault.

Change-Id: I49c1702005f88eab523f00b25923c9c65193c7ca
Signed-off-by: Harshdeep Dhatt <hdhatt@codeaurora.org>