Merge "binder_rpc_fuzzer: use ConsumeRandomLengthString" am: f4367e39e4 am: 433eda77fc

Original change: https://android-review.googlesource.com/c/platform/frameworks/native/+/1832092

Change-Id: I67c1805a6acd247dfbfcaa3a96cc0dcdce8fc933