tegra.conf: Add ConstrainCursor Option

Add the option ConstrainCursor and set it to false.
The fixes a display problem when coming back from sleep in extended
desktop mode.

BUG=none
TEST=Wait for lcd to sleep, then wake it up and see the desktop
restored.

Change-Id: Ide86dde7408407bd04d92e48f5e37aab88678221
Signed-off-by: David Ung <davidu@nvidia.com>
Reviewed-on: https://chromium-review.googlesource.com/191182
Tested-by: Andrew Chew <achew@nvidia.com>
Reviewed-by: Mike Frysinger <vapier@chromium.org>
Commit-Queue: Andrew Chew <achew@nvidia.com>
1 file changed