Cancel the vidmem.clear_mem_worker during suspend only if vidmem is enabled via kernel config. Otherwise it's not initialized. Bug 1853519 Change-Id: If88c756ae14f348eddda01218fa218480217388c Signed-off-by: Konsta Holtta <kholtta@nvidia.com> Reviewed-on: http://git-master/r/1321118 Reviewed-by: svccoveritychecker <svccoveritychecker@nvidia.com> GVS: Gerrit_Virtual_Submit Reviewed-by: Deepak Nibade <dnibade@nvidia.com> Reviewed-by: David Martinez Nieto <dmartineznie@nvidia.com> Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>