[automerger skipped] Zero-initialize hidl_vec data
am: 7a3202296f -s ours
am skip reason: change_id Ica6c55e7346b9e1ba91192472e2b229cb786802c with SHA1 03b0bf2f20 is in history

Change-Id: Ic0aded1a71e636af1413e0c3b06870c324279efd