db845c: Make TARGET_USES_BOOT_HDR_V3 visible to vendor package am: c6aace797c am: f46650c6ed

Original change: https://android-review.googlesource.com/c/device/linaro/dragonboard/+/1991756

Change-Id: I4aab0a589cfb837346d77285aa064baba40b9cd5