Merge "MPEG4Writer:use 64bit version fallocate/ftruncate" into rvc-dev am: a1ab111f60

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/av/+/11979427

Change-Id: I2720ea41821f540a92a8d12d4c3c97b5dffbcfd8