Use the timeout stack dump functions.

Use the native stack dumping functions that allows time outs. If
debuggerd locks up, before a bugreport would hang forever. Now
it will timeout properly and still get all of the other information.

Bug: 18766581

(cherry picked from commit 457731f6)

Change-Id: I39e8e9c60209e3ef9efac795fedb8e1edce2bd3e