Revert "ASoC: tegra: fix uninitialized variables in set_fmt"

Revert "ASoC: tegra: fix uninitialized variables in set_fmt"

This reverts commit 05687bd4a14b3970d1f903def34aa421634f31fe.

Commit 05687bd4 from upstream kernel breaks audio on Norrin.
(commit was merged in donwstream kernel while upgrading to
K3.10.33 version)
Revert this commit to fix the issue.

Original Bug 1456092
Bug 1481593

Change-Id: Ic646c9239596815be0987e9f1c033ff1adbc3689
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: http://git-master/r/383074
GVS: Gerrit_Virtual_Submit
Reviewed-by: Sumit Bhattacharya <sumitb@nvidia.com>