msm: kgsl: Recover from GMU fault

The GMU fault caused by GMU FW bugs or memory corruption can be
recovered. However, if FW is stuck waiting for RPMh response, GMU
recovery cannot work. The change shall improve GMU stability.

CRs-Fixed: 2085877
Change-Id: Ifad1f190c30a13cebf931be3756712a4fbc8355c
Signed-off-by: George Shen <sqiao@codeaurora.org>