Merge "Add MAX_BOOT_LEVEL tag, BOOT_LEVEL_EXCEEDED error" am: 43972e7d10

Original change: https://android-review.googlesource.com/c/platform/hardware/libhardware/+/1581935

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: I26af986c4429e48c6ec492c8bf32a34931e9e585