drm/amdgpu: fix suspend/resume hang regression

[ Upstream commit f1ef170 ]

Regression has been reported that suspend/resume may hang with
the previous vm ready check commit.

So bring back the evicted list check as a temp fix.

Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1922
Fixes: c1a66c3 ("drm/amdgpu: check vm ready by amdgpu_vm->evicting flag")
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Qiang Yu <qiang.yu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c

@@ -777,7 +777,8 @@ bool amdgpu_vm_ready(struct amdgpu_vm *vm)
 	amdgpu_vm_eviction_lock(vm);
 	ret = !vm->evicting;
 	amdgpu_vm_eviction_unlock(vm);
-	return ret;
+
+	return ret && list_empty(&vm->evicted);
 }
 
 /**