Increase maximum trace files storage limit

Current limit of 512 MB is too small.

Trace files are around 100 MB. Zstd has a typical compression ratio of 4. We can only store 25 traces until background processing clears the traces.

Raising the limit to 768 MB gives us space for approximately 38 traces, which should be enough for a day's collection workload.

Change-Id: I8d36120bdc3873b47bc56ea9a9370b7ed3601595
Test: manual
Bug: 343556964
2 files changed