Merge "Refactored libstagefright_writer_fuzzer" into main am: e9114fc5 am: 7904e5ad

Original change: https://android-review.googlesource.com/c/platform/frameworks/av/+/3113241



Change-Id: Iab8f63581ba4a5a80615c120aea8f54284df783a
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>