nvdla: kmd: add bypass exec support with submit

[1] NVDLA_SUBMIT_FLAGS_BYPASS_EXEC flag allows its clients
    (UMD or nvdla_kmd_sanity) to bypass execution for a
    submission. This flag is a property of submission and
    shall directly apply on all tasks within that submit.
[2] With above flag set, it propagates information to firmware
    through task descriptor and firmware shall be responsible
    for bypassing the execution.

Jira DLA-4443

Change-Id: I70000ef486905c812fec65f265a378a99844c10a
Signed-off-by: Arvind M <am@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2544802
Reviewed-by: svcacv <svcacv@nvidia.com>
Reviewed-by: Anup Mahindre <amahindre@nvidia.com>
Reviewed-by: Amit Sharma (SW-TEGRA) <amisharma@nvidia.com>
Reviewed-by: svc_kernel_abi <svc_kernel_abi@nvidia.com>
Reviewed-by: Sachin Nikam <snikam@nvidia.com>
Reviewed-by: Bharat Nihalani <bnihalani@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
GVS: Gerrit_Virtual_Submit

include/uapi/linux/nvhost_nvdla_ioctl.h

@@ -96,6 +96,7 @@ struct nvdla_submit_args {
 	__u16 num_tasks;
 #define MAX_TASKS_PER_SUBMIT		16
 #define NVDLA_SUBMIT_FLAGS_ATOMIC	(1 << 0)
+#define NVDLA_SUBMIT_FLAGS_BYPASS_EXEC	(1 << 1)
 	__u16 flags;
 	__u32 version;
 };