arm: tegra21: dts: update LC898212 focuser path

arm: tegra21: dts: update LC898212 focuser path

Corrected device tree node patch for LC898212 focuser

Bug 1700211

Change-Id: I79aa8061fec9898e9905ad712b68f06c0fd9b8f8
Signed-off-by: Frank Chen <frankc@nvidia.com>
Reviewed-on: http://git-master/r/1010203
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit
Reviewed-by: Igor Tryndin <itryndin@nvidia.com>
Reviewed-by: Ankit Gupta (SW-TEGRA) <ankitgu@nvidia.com>
Reviewed-by: David Schalig <dschalig@nvidia.com>
Reviewed-by: Jihoon Bang <jbang@nvidia.com>
Reviewed-by: Hayden Du <haydend@nvidia.com>