Add Known Issue about 32-bit bugs. am: cc61e5a983 am: 808bb6c630
Add Known Issue about 32-bit bugs. am: cc61e5a983 am: 808bb6c630

Original change: https://android-review.googlesource.com/c/platform/external/perfetto/+/1413631

Change-Id: Ia15c6d24ef854e59be29117a72952174d49afdd6

google/perfetto,google/perfetto,google/perfetto,google/perfetto,google/perfetto,google/perfetto,google/perfetto,google/perfetto