Revert "drm/msm/gpu: Push gpu lock down past runpm"

This reverts commit abe2023b

.

Changing the locking order means that scheduler/msm_job_run() can race
with the recovery kthread worker, with the result that the GPU gets an
extra runpm get when we are trying to power it off.  Leaving the GPU in
an unrecovered state.

I'll need to come up with a different scheme for appeasing lockdep.

Signed-off-by: Rob Clark <robdclark@chromium.org>
Patchwork: https://patchwork.freedesktop.org/patch/573835/