video: tegra: dc: consider bandwidth efficiency for tegra2

video: tegra: dc: consider bandwidth efficiency for tegra2

This is similar to commit a62be5b5595ad86411ced81bceeb3d6a693426d2
pushed for rel-14 branch.

Bug 1004341

Signed-off-by: Bharat Nihalani <bnihalani@nvidia.com>
Reviewed-on: http://git-master/r/111227
(cherry-picked from fbfce3106da8dad18948103c812bdd9d45ffdd06)

Change-Id: Ib459094fd6499b3cc63bc534bf36e57dc98ce62b
Reviewed-on: http://git-master/r/114584
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Bharat Nihalani <bnihalani@nvidia.com>
Tested-by: Bharat Nihalani <bnihalani@nvidia.com>
Reviewed-by: Sachin Nikam <snikam@nvidia.com>
Rebase-Id: R4cd9916f4ea354cb36fd1a9f5cac9df587a07768