msm: kgsl: Force OOB on during Adreno start

Make sure power is on when starting the GPU. When the device
is started and initialized, clear the OOB to allow IFPC.

Change-Id: I34716cf2b9c9b185ac56b8e5a47eb24c366507e5
Signed-off-by: Carter Cooper <ccooper@codeaurora.org>