drm/amd/powerplay: update hw fini function to relase some memory

Release memory of table_context->driver_pptable and
table_context->ppt_information when smu hw fini.
Signed-off-by: Likun Gao <Likun.Gao@amd.com>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Reviewed-by: Kevin Wang <Kevin1.Wang@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/powerplay/amdgpu_smu.c

@@ -434,11 +434,16 @@ static int smu_hw_fini(void *handle)
 {
 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 	struct smu_context *smu = &adev->smu;
+	struct smu_table_context *table_context = &smu->smu_table;
 	int ret = 0;
 
 	if (adev->asic_type < CHIP_VEGA20)
 		return -EINVAL;
 
+	if (!table_context->driver_pptable)
+		return -EINVAL;
+	kfree(table_context->driver_pptable);
+
 	ret = smu_fini_fb_allocations(smu);
 	if (ret)
 		return ret;