binder_parcel_fuzz: add setData

This causes crashes, due to mObjects not getting cleared or similar?
This is not an operation that should be done, but we should add tests
for these cases and fix them.

Bug: 328161314
Test: run fuzzer (crashes quickly)
Change-Id: Ib737e81fbf53a2e1223cbdcde6ed50d1b6f02b24