Fix integer overflow during MP4 atom processing

A few sample table related FourCC values are handled by the
setSampleToChunkParams function. An integer overflow exists within this
function. Validate that mNumSampleToChunkOffets will not cause an integer
overflow.

Bug: 20139950
Change-Id: I1972cc185fce5e058afa143ad5eabcc269ad324d
(cherry picked from commit c24607c2)