msm: kgsl: Increase fault timer for slower a305 GPU

Slower GPU's need larger fault timer to detect hangs correctly.
we use 50ms fault timer for faster GPU's, a305 GPU is slower
compared to faster GPU, use a larger 200ms fault timer to
prevent false hang detection.

Change-Id: I0f0bf492ae2d9941979893b75b2e1dbc832e1ba8
Signed-off-by: Tarun Karra <tkarra@codeaurora.org>