Add additional tests for ISO location redaction

Verify location gets redacted if a 64-bit box appears before
the location in the mp4 file. Also verify 0-length box is handled
correctly.

Bug: 134155286
Test: atest MediaStore_Video_MediaTest
Change-Id: I6aef2a4c23e67ef7723792ba893f6e89e705100b
4 files changed