[ Upstream commit e73390d181103a19e1111ec2f25559a0570e9fe0 ]

Free mqd_mem_obj it GTT buffer allocation for MQD+control stack fails.
Signed-off-by: NOak Zeng <ozeng@amd.com>
Reviewed-by: NFelix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: NFelix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>
Signed-off-by: NSasha Levin <sashal@kernel.org>