backuptool: Merge LOS Updates

From: Bruno Martins <bgcngm@gmail.com>
Date: Fri, 10 Aug 2018 17:03:56 +0100
Subject: backuptool_ab: Pick Android Version properties from build.prop

Change-Id: Ib11670474641d6fd14a00f8421e9fe8d1879bbc2

From: LuK1337 <priv.luk@gmail.com>
Date: Wed, 5 Dec 2018 20:51:21 +0100
Subject: vendor: Support system-as-root A-only backuptool

Change-Id: I8336e5ab3c9d03fae7426044066318b987653d99

Signed-off-by: Jackeagle <jackeagle102@gmail.com>
Change-Id: I8d5df1557c56d08cded6d6e6959d965de90ef874
6 files changed