msm: kgsl: Handle the very first gmu boot failure

The very first boot starts from the INIT state. If the
gmu fails to boot here, set the state to KGSL_STATE_RESET
to effect a RESET -> INIT transition where we reset the
GMU.

Change-Id: I0fddf745d299b855aab0c1989997dcab5e77954a
Signed-off-by: Harshdeep Dhatt <hdhatt@codeaurora.org>