msm: kgsl: Cleanup correctly when platform probe fails

When kgsl_device_platform_probe fails with EPROBE_DEFER,
do proper cleanup to avoid issues in next probe call.

Change-Id: Icd998b1299a64d53458bcd452f754903710c4ca0
Signed-off-by: Druva Kumar Charipalli <quic_dcharipa@quicinc.com>
Signed-off-by: Pankaj Gupta <quic_gpankaj@quicinc.com>