lib: avb: update avb source code

according to google lib avb
commit id: 44e07124afb1f46af0d745d83481f49c482900b1

Change-Id: Ie59a7265699e3e6b1673bb64da6d1c7a1e7b6201
Signed-off-by: Jason Zhu <jason

lib: avb: update avb source code

according to google lib avb
commit id: 44e07124afb1f46af0d745d83481f49c482900b1

Change-Id: Ie59a7265699e3e6b1673bb64da6d1c7a1e7b6201
Signed-off-by: Jason Zhu <jason.zhu@rock-chips.com>

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lib: avb: update and modify the avb library

The commit point is updated to google external/avb/
which commit point is cf8c56208d2d9643804a7f123b196c7ebc9af276.

Change-Id: I5a10a8a45d3e9e2c9d20d9b3d

lib: avb: update and modify the avb library

The commit point is updated to google external/avb/
which commit point is cf8c56208d2d9643804a7f123b196c7ebc9af276.

Change-Id: I5a10a8a45d3e9e2c9d20d9b3d44946073c9a49ff
Signed-off-by: Jason Zhu <jason.zhu@rock-chips.com>

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avb: support vbmeta key_pub verify

Android Things requires specific public key
metadata and verification logic to correctly
verify vbmeta public keys.

This commit provide fuction avb_atx_validate_v

avb: support vbmeta key_pub verify

Android Things requires specific public key
metadata and verification logic to correctly
verify vbmeta public keys.

This commit provide fuction avb_atx_validate_vbmeta_public_key
to verify the vbmeta.

Change-Id: I227e93b342671b4395cbaa7dea2121cbf0d7234b
Signed-off-by: Jason Zhu <jason.zhu@rock-chips.com>

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