drm/amdgpu/userq: remove queue from doorbell xa during clean up
If function amdgpu_userq_map_helper fails we do need to clean
up and remove the queue from the userq_doorbell_xa.
Signed-off-by: Sunil Khatri <sunil.khatri@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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