Skip allocating memory if required s/w set up for mmu fault buffers is already done. Bug 2045228 Change-Id: Ib88e8dd4f54b3f0faf7dc9edf091ec285220f7b5 Signed-off-by: Seema Khowala <seemaj@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/1640516 Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>