Pass struct gk20a to secure alloc API instead of Linux specific struct device. JIRA NVGPU-38 Change-Id: I6d9afaeeff9b957351072caa29690f2caf58f858 Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-on: http://git-master/r/1505179 Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>