Add fuzzer for drmFactory Service am: 12342a90b6

Original change: https://android-review.googlesource.com/c/platform/frameworks/av/+/2399654

Change-Id: I231f433e04d21d1f356adcaa65e27defa24d403c
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>