msm: kgsl: Implement the A3XX power-on shader workaround

On some targets (A330v2) the hardware is in a wonky state following
a power collapse. Send a special command buffer before the first
submission to put everything back in place.

Change-Id: Ic0dedbadb8e676677b9db95defd53f7bd3fba338
Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>