[automerger skipped] Zero-initialize hidl_vec data
am: 03b0bf2f20 -s ours
am skip reason: change_id Ica6c55e7346b9e1ba91192472e2b229cb786802c with SHA1 97e2d175cf is in history

Change-Id: I855463a8bb7d4480cfba1aadcd852aac4b283620