libldac-encode_fuzzer: Bug Fix am: b0b2df3f09 am: 31aa7ddc23 am: a01f8664df am: b05903278d am: ff1871f4fd

Original change: https://android-review.googlesource.com/c/platform/external/libldac/+/2015996

Change-Id: Ie53450a8b901fc0091670c40426cd5e2702cb8a8
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>