[automerger skipped] fix size of vendor boot header am: 5bb77e1e36 am: 03b5bc0bba -s ours

am skip reason: Change-Id Ib42222f29a7a75f552cc886437b8967f195227b5 with SHA-1 ba07d6e299 is in history

Change-Id: I783763f886f6828655b0884bf870c457ce40292d