drm/msm/a4xx: fix error handling in a4xx_gpu_init()

drm/msm/a4xx: fix error handling in a4xx_gpu_init()

This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven.
This ID is fixed in Linux Kernel version v5.14.14 by commit 3962d626eb3e3b23ebb2e2a61537fa764acbfe11, it was introduced in version v5.11 by commit 5785dd7a8ef0de8049f40a1a109de6a1bf17b479. For more details please see the references link.